#eevblog - 2020-03-18 - AustNet Archive Project

// #eevblog — 2020-03-18

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
« 2020-03-17 2020-03-19 »
03:23 Quit: Spark_Ga_ ([email protected]) Connection closed
16:10 Join: Guest|64169 ([email protected]) to #EEVblog
16:55 Quit: Guest|64169 ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
34:18 <hsn> Re: AC or DC which is more dangerous
34:27 <hsn> blueskull:
34:27 <hsn> This question has been discussed to death.
34:27 <hsn> My final verdict is the one you touch is more dangerous.
35:40 <K> haha
52:34 <Ysjoelfir> :D thats pretty true^^
03:30 Join: Spark_Gap ([email protected]) to #EEVblog
05:31 Quit: Spark_Gap ([email protected]) EOF from client
04:59 Quit: Ysjoelfir ([email protected]) Quit: Farvel og har en hyggelige tid :)
06:17 <K> meanwhile:
06:19 <K> Boris Johnson jokes with CEOs that ventilator crisis should be called 'Operation Last Gasp'
15:55 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
18:28 Join: Lord_of_nothing ([email protected]) to #EEVblog
25:33 <Lemon> am back
28:35 <Lemon> hmm my supply and attenuators/adapters might be stuck with the coronavirus
28:43 <Lemon> but they are at one day of being delivered :(
28:57 Join: Ysjoelfir ([email protected]) to #EEVblog
28:57 Quit: Ysjoelfir ([email protected]) Changing hosts
29:41 Quit: Ysjoelfir ([email protected]) Quit: Farvel og har en hyggelige tid :)
33:22 <steve30> Coronavirus infects electronics now?
33:58 Quit: hsn ([email protected]) Ping timeout: 121 seconds
34:03 <Lemon> no, but delivery services
36:29 <Lemon> im a bit sad because I need those adapters, as my arb gen is coming
36:44 <Lemon> the second scope probe aswell, but well it can wait
44:59 <Lemon> anyone know a bench or other form of thermometer accurate to 0.1C, that can be used to log data on a computer via gpib or usb ?
46:43 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
49:13 Join: Lord_of_nothing ([email protected]) to #EEVblog
50:32 <Lemon> hmmm im watching a video thats interesting about a diy build, if anyone is interested https://youtu.be/pj1HOM35vH4
55:55 <Lemon> those chips are interesting because they cost 1.7 euros a pop, and are accurate to +- 0.1C
56:01 <Lemon> I could use like 2 or 4, for multiple channels
57:14 <K> what are you going to measure?
57:39 <Lemon> well Iwanted to measure a Vref based on a LM399, and why not other things as it would be cheap to have multiple channels
57:51 <Lemon> ambient temp for example
58:25 <DHess_US> https://vid.pr0gramm.com/2020/03/17/fa5be4bc9d70cc76.mp4
58:46 <Lemon> https://www.mouser.fr/ProductDetail/Silicon-Labs/SI7051-A20-IM?qs=j6MGy4L9yX21PfRkJxhkvA==
58:49 <Lemon> this is the chip btw
59:04 <Lemon> haha america psycho
59:08 <Lemon> a masterpiece
59:25 <Lemon> haaaaa xD
00:47 <Lemon> american not america
00:55 <Lemon> nice one !
01:46 <Lemon> DH_Hess whatcha think of that chip ? it seems easy enough to use it with an atmel uC, it doesnt require tons of components !
02:27 <Lemon> damn im tired
02:36 <Lemon> DHess_US
02:47 Join: hsn ([email protected]) to #EEVblog
02:49 <Lemon> sorry for butchering your nickname
03:32 <hsn> hey lemon
03:42 <hsn> can u do this : allll allll :P :P :P :P
03:43 <Lemon> hey !
03:57 <Lemon> wut ? :>
04:21 <DHess_US> Lemon, if it works, then it works. I didn't know they made sensors like that with that accuracy.
04:44 <Lemon> thats quite impressive ! my idea with 2 or more sensors to have multiple channel is fine you think ?
04:53 <Lemon> like one built in for ambient, and others with long wires
05:10 <Lemon> idk if there would be loss with wires but I dont think so
05:15 <Lemon> after all its a digital signal no ?
05:55 <DHess_US> long wire I2C is possible but requires some attention.
05:59 <hsn> lemon u dont know "the annoyying orange" ?
06:13 <Lemon> yeah :>
06:24 <Lemon> hmm by long wire, I meant a maximum of 50cm, is that ok ?
07:53 <hsn> i tried that with crc
07:57 <hsn> near motors
08:36 <Lemon> with those kind of sensors ?
11:37 <K> i wouldnt do 50 cm of i2c
11:53 <Lemon> yeah ?
11:55 <K> plop a tiny mcu and do uart
11:58 <Lemon> what would be the problem ?
12:02 <K> unreliable
12:05 <Lemon> I dont have much experience honestly
12:13 <K> i've had some issues
12:18 <K> wouldn't do that again
12:29 <K> but eh, maybe i did something wrong
12:40 <Lemon> ha yeah I could make 'sensors' with the sensor chip, + a mini Uc as you said, the wires being for data transfer to another one and power
12:53 <Lemon> but it will be big for a sensor
13:08 <K> you will need 4 wires anyway
13:13 <K> scl sda gnd pwr
13:21 <Lemon> ho yeah wires itself are no problem
13:27 <Lemon> but I want the sensor to fit in small areas
13:34 <Lemon> like under a LM399 for example
13:40 <Lemon> or over, idk the best way
17:29 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
19:58 Join: Lord_of_nothing ([email protected]) to #EEVblog
21:10 <DHess_US> i2x works fine across 50cm
21:37 <Lemon> perfect then ! it might be even less, I'll see whats needed
22:01 <DHess_US> But don't confuse absolute accuracy for what you might really want like resolution and repeatability.
22:02 <Lemon> I visualize a little box with a screen to show temp of each channels (maybe just 2, or max 4) and a usb connection, to log data on the computer
22:10 <Lemon> ho yes I know !
23:49 <Lemon> if theres sensors more expensve with more accuracy, I can spend more
24:00 <Lemon> I mean right now I could build it with 10 bucks
24:12 <Lemon> I can spend like 50 euros if its worth it
24:26 <Lemon> 0.1C accuracy would be fine, but if more is possible for not a ton, why not
25:39 <Lemon> I guess it should work on batteries, to avoid noise
25:46 <Lemon> I have tons of 18650
26:05 <Lemon> of nice quality, unused, I think those are samsung 3ah, I forgot the model
27:54 <DHess_US> Huh, AD has one like that also, https://www.analog.com/en/products/adt7422.html#product-overview
28:44 <DHess_US> TI has them also
29:08 <Lemon> thats neat honestly for the price
29:47 <Lemon> I dont really like to ahve much digits of resolution when the accuracy dont follow, but I can live with 2 digits after the coma
29:59 <Lemon> for averaging, to compare two readings etc
39:05 <DHess_US> But with temperature sensors, usually the repeatability is much better than the accuracy so extra resolution makes sense.
39:42 <DHess_US> The sensor may only be within 1 degree, but it can accurately measure a change of 0.1 degree over months or years.
39:54 <DHess_US> or 0.1 and 0.01, whatever
40:02 <DHess_US> RTDs are particularly good about that.
40:19 <coppice_> You have to check their aging characteristics if you want to do long term comparisons
42:49 <hsn> when i did i2c it was very bad i didnt know why i had too much noise in the i2c .. "i just knew oh ok there is too many motors here maybe thats the noise source"
43:23 <hsn> + it was bad bus topology "star"
43:39 <hsn> 1 master arduino controls other 16 arduinos ..
45:19 <hsn> i had to put (5 retries) with crc checks
45:30 <hsn> to control the devices
46:13 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
48:34 <hsn> http://hsn93.com/www/sm-mold.mp4 <<< this was the project
48:39 Join: Lord_of_nothing ([email protected]) to #EEVblog
51:56 <DHess_US> i2c is not actively driven in all states which reduces noise immunity. Where that matters, extra care is needed.
52:40 <hsn> does that video run ?
52:43 Quit: qeed ([email protected]) Ping timeout: 121 seconds
52:44 <hsn> the link ?
53:43 <DHess_US> It works but seems to suffer from traffic congestion.
53:57 <DHess_US> I'm not really setup to stream video on this system.
54:24 <hsn> yes i cant stream it
55:18 <hsn> which system
57:51 <DHess_US> I can't really stream because I am RDP.
58:58 <hsn> ah
00:25 <hsn> <lemon> ---> this is the annoying orange: https://youtu.be/8kuhfBcGapw?t=23
01:32 <hsn> DHess_US, i would guess if i2c was noise at 50cm . u can go for 100kHz instead of 400khz to increase noise immunity as well right ?
02:01 <hsn> was noisy**
03:51 <DHess_US> Sort of. Operating at a lower speed means you can add capacitance to the line to limit bandwidth.
03:58 <DHess_US> Which limits noise.
04:38 <DHess_US> So for instance add AC terminations and replace the pullup resistors with current sources.
04:51 <K> you could go even lower than 100kHz fwiw
04:51 Join: qeed ([email protected]) to #EEVblog
05:28 <DHess_US> I think some devices will false trigger if the slew rate is too slow.
05:53 <K> depends on device somewhat yea
06:45 <hsn> most of them say 100khz , 400khz .. so running above or below would mean (out of specs) and on your own (responsibility) ?
06:51 <K> still, i would imagine a tiny pcb with the sensor or two or three of four and something like attiny as i2c<->uart would be safest bet
07:16 <K> 100kHz is kinda standard
07:42 <Lemon> hmmm ok yeah 2 digits after coma could be nice, good enough for me
08:45 <hsn> before comma how many digit?
08:45 <hsn> s
08:47 <DHess_US> With some type of protocol translation noise and speed would no longer be a problem.
09:07 <DHess_US> It would just be nice to have an easy way to make the i2c bus better.
09:25 <Lemon> well I'll measure things under 100C mostly
09:55 <hsn> 2 bytes would do.. i prefer (start byte end byte)
10:46 <K> i3c!
10:47 <DHess_US> Hmm, I think with 3 resistors and one NPN transistor the I2C bus can be extended to operate at 12 volts or even higher.
10:50 <K> whatever it is
10:59 <K> there are i2c extender ics
11:20 <K> 12V iirc
11:24 <DHess_US> But the extender ICs don't really solve the real problem.
11:40 <K> higher voltage/more current
11:57 <K> don't remember if they did something with pullups as well
12:02 <K> so nothing dangles
12:19 <K> you'd need one at each end that is
13:44 <hsn> i had problem in i2c level shift from 3v to 5v @ 400Khz .. using mosfets in this app note : https://www.nxp.com/docs/en/application-note/AN10441.pdf .. lots of noise
14:08 <hsn> not sure why !
14:27 <hsn> at 100khz is was ok
14:53 <DHess_US> haha, that's the same thing I just came up with but with NPNs instead of n-channel MOSFETs.
15:07 <DHess_US> No, wait, not the same.
15:24 <DHess_US> I used resistive dividers at *each* device.
15:29 <hsn> yeah because this one uses the body diode
16:30 <DHess_US> Right, mine uses the Vce saturation voltage so has no forward voltage drop.
16:55 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
17:12 <Lemon> I think I'd like to make my wired sensors removable, with simple multi-pin connectors
17:31 <hsn> DHess_US, i just cant imagine it .. if i see it on schematic i would set 5minutes thinking about it until i know what is it ..
18:16 <K> i ended up using this for 3 to 5V level shifting
18:19 <K> http://www.ti.com/lit/ds/symlink/txs0102.pdf
18:22 <K> no problems
18:40 <K> maybe a tad more expensive than a pair of mosfets though
19:04 <hsn> suites high speed i2c
19:26 Join: Lord_of_nothing ([email protected]) to #EEVblog
19:28 <hsn> the app note of the mosfets claims its good for 400khz as well
19:44 <hsn> but it just didnt work for me idk why
34:35 <DHess_US> hsn, replace the MOSFETs shown with common base NPN bipolar transistors with a base series resistor to limit current.
35:36 <DHess_US> Then add a resistive divider from collector to emitter to ground.
36:27 <DHess_US> So when the level shifted signal is high, the emitter is pulled up to the supply voltage of the device indicating high. When the device pulls the emitter to ground, the collector gets pulls to ground.
36:56 <DHess_US> So now a 1.8 or 3.3 or 5.0 volt device can drive a common higher voltage i2c line.
37:18 Join: Spark_Gap ([email protected]) to #EEVblog
37:31 <DHess_US> Noise on the i2c line is divided by the resistor divider just like the signal.
37:48 <DHess_US> I'd use current pullups but resistors could work also.
42:00 <Lemon> so that would cost me 115 euros to get 3 gpib cables (an extra one in case I get another gpib capable instrument, I want a 3456a ! :> ) and an agilent gpib to usb cable
42:08 <Lemon> thats decent
42:12 <Lemon> but I have to wait as it comes from china
44:11 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
45:53 Join: Spark_Gap ([email protected]) to #EEVblog
01:12 <hsn> DHess_US : like this https://snipboard.io/PyFQzK.jpg ?
01:26 <hsn> ops
02:28 <hsn> https://snipboard.io/zoXfjC.jpg
04:05 <hsn> shit!
04:07 <DHess_US> hsn, no. R1 connects between the base and 1.8 volts. The i2c device connects directly to the emitter. The 1.8 volt pullup is optional
04:37 <DHess_US> Now connect r1 between the base and 1.8 volts
04:53 <hsn> i noticed how shitty it is xd
05:57 <DHess_US> The 1.8 volt pullup is optional but it affects how the divider works.
06:17 <DHess_US> Eh, I guess it doesn't affect it much. Nevermind.
06:21 <DHess_US> Still optional
06:56 <hsn> ok so to shift down .. u just use divider ..
08:01 <hsn> to shift up ur changing the emitter voltage by lower voltage device
08:03 <DHess_US> Exactly, and for shift up, it uses the transistor. And the transistor and divider are in parallel but that is ok.
08:32 <DHess_US> Right, and when the emitter is pulled low, the base follows it and the base series resistor limits the current.
09:14 <DHess_US> There might be refinements to add with small value capacitors or adding diodes but that is the basic idea.
09:20 <hsn> R2 will be paralel with VCE
09:55 <hsn> i guess vce = saturation voltage
09:57 <DHess_US> That's right. And R2 and R3 divide the high voltage down to 1.8 volts for a high signal.
10:13 <DHess_US> Yes, but Vce(sat) can be considered zero in this case.
10:18 <DHess_US> It is insignificant.
10:23 <hsn> yes
10:25 <DHess_US> In practice it will be 10s of millivolts.
10:44 <hsn> ah really? less than 0.7v ?
11:00 <DHess_US> Yep
11:23 <DHess_US> In switching transistor applications I usually assume 0.7 volt Vbe and 0.35 volt Vce
11:39 <DHess_US> But in something like this, Vce(sat) will be much lower.
12:40 <hsn> how so .. what makes it less ?
13:05 <hsn> because ic is smaller ?
13:16 <DHess_US> yes, and ib is probably larger
13:35 <DHess_US> in the saturation region, Vce is resistive so the voltage can be very small.
13:39 <hsn> so this is (boost saturation) mode
14:02 <DHess_US> They make special transistors where the saturation will be just millivolts or even less.
14:17 <hsn> what r they called
14:24 <DHess_US> At least they used to before JFETs and MOSFETs become common.
14:28 <DHess_US> "chopper" transistors
14:46 <DHess_US> They were used where JFETs and MOSFETs are used now.
15:19 <hsn> i see
17:27 <hsn> r2 and r3 (the dividers) need to be much smaller than the (pullup resistors) right?
17:30 <DHess_US> I have a part number somewhere of an example.
17:38 <DHess_US> No, it needs to be larger
18:01 <DHess_US> The divider needs to divide 5 volts down to 1.8 volts *without* loading down the pullup resistor.
18:17 <DHess_US> Which will ultimately limit performance.
18:37 <hsn> then i must remove the "optional" resistor?
18:58 <DHess_US> The 1.8 volt pullup? Yes, I'd remove it.
19:08 <DHess_US> It complicates things for no real good reason.
19:12 <hsn> if the divider is too high it wont pull down that resistor
19:27 <DHess_US> Right, so just remove it. It is not needed.
19:37 <hsn> yess
19:42 <DHess_US> The divider performs the same function as the 1.8 volt pullup so it replaces it.
19:49 <hsn> now i understand it .. see .. took more than 5 min
19:49 <hsn> lol
20:48 <Lemon> hey DHess_US watcha think of those ? https://www.ebay.fr/itm/270725367474
21:09 <Lemon> do you know that brand ?
21:33 <DHess_US> MA-COM? MA-COM is reputable.
22:03 <Lemon> ok ! I didnt know :> im tempted to take 2 or 3 of those
22:53 <DHess_US> I'm not sure I own any BNC/N/SMA attenuators below 3dB.
23:26 <Lemon> but lets say I want a 7db attenuator, is it a problem if I stack like 2x1db, 1x3db and 1x2db ?
23:35 <Lemon> theres a limit doing this ? besides physical problems
23:42 <DHess_US> No, no limit.
23:55 <Lemon> ok perfect, ima take 3x1db then, that will be handy
24:51 <Lemon> I hope to receive this beauty tommorow https://www.leboncoin.fr/bricolage/1759249889.htm/
25:43 <DHess_US> Is that a regulated power supply?
25:48 <Lemon> yes !
25:54 <Lemon> 50v 2amps max
26:13 <Lemon> perfect working/visual condition, and he made a little rebate to 34 euros shipped
26:20 Quit: Spark_Gap ([email protected]) Connection closed
26:22 <Lemon> I have a thing for lab supplies :>
26:46 <DHess_US> Huh, 50 volts at 2 amps is large for that package.
26:53 <DHess_US> That looks very nice though.
27:20 <Lemon> well pictures can be tricky, many times I told myself 'ho it will fit on the desk' and you end up with a huge mofo xd
27:25 <Lemon> but yeah it looks cute !
28:08 <Lemon> it will fit well with the sodilec 9v2,4a, topward dual 32v2.2amp + 5v3a fixed output, gossen konstanter 32v/2a :>
28:22 <Lemon> and a chinese smps, but meh
28:38 <Lemon> I prefer linear bois
29:02 <Lemon> Id like to find a HV one one day
29:12 <Lemon> I missed a nice 1kv 200ma one for 120 euros
29:15 <DHess_US> I mostly use a pair of these now, http://w140.com/tekwiki/wiki/PS503
29:37 <Lemon> hoooo they are neat ! you got the rack to put them in ?
29:37 <DHess_US> With a pile of DM501 and DM502 multimeters to measure voltage and current.
29:57 <DHess_US> Yes, I have a TM504 and a TM501
30:21 <Lemon> pretty nice :P if you can show me your bench one day, I'm interested ! I'll take a pic when everthing is here :>
30:56 Join: Spark_Gap ([email protected]) to #EEVblog
32:17 <DHess_US> https://i.ibb.co/B6zVj32/PG506-Capacitor-Burn-In-720.jpg
32:37 <Lemon> hehe jolii !!
35:22 Quit: hsn ([email protected]) EOF from client
40:18 <Lemon> I'd love one day to get a tek 2467B
52:32 Join: Ysjoelfir ([email protected]) to #EEVblog
56:28 <Ysjoelfir> hello..
56:28 <EEVBlog> Hello there, Ysjoelfir!
00:52 <rust_collector> hello, hello, hello
00:57 <Lemon> hi hi
01:25 <Ysjoelfir> I just lost my job. hooray.
01:26 <rust_collector> ho ho
01:34 <Lemon> what happenned ???
01:38 <rust_collector> permanently?
01:44 <Lemon> :o
01:54 <Ysjoelfir> yep. in around 4 months
01:59 <rust_collector> hmm
02:00 <Ysjoelfir> and nothing happened
02:30 <rust_collector> that is not ideal
02:41 <Lemon> but how ? I dont understand
02:44 <Ysjoelfir> just the usual "we tried to find a project for you, but we can't come up with one. were happy that you did your bachelors degree with us and tried our best, but sadly nope"
02:56 <Lemon> really ??? wtf...
03:21 <Lemon> then its a bad place that doesnt deserve you
03:21 <rust_collector> oh, so they got something out of educating you?
03:21 <Ysjoelfir> but I can understand it
03:29 <Lemon> that means you'll find way better soon
03:38 <Ysjoelfir> well, I was very happy there
03:58 <Ysjoelfir> My wish was to stay there for many years
04:11 <Lemon> yeah sure but you will be even happier somewhere else ! thats really a shame they did that...
04:16 <Ysjoelfir> yes rusty, they got a good margin from that
04:25 <rust_collector> mmhmmm
04:49 <Ysjoelfir> but it was necccessary - it's a small business and we have basically just one single product
05:01 <Ysjoelfir> every part of that product gets managed by one person
05:11 <Ysjoelfir> so... no free parts equals no work for small kai
05:23 <Lemon> yeah but why did they took you at first then ?
05:46 <Ysjoelfir> well, at first I was there as a... erm... wait. lemme look that word up
06:01 <Ysjoelfir> student apprentice.
06:18 <Ysjoelfir> we had to do an internship in the studies
06:39 <Ysjoelfir> so I did that there and then I asked if I could stay for my bachelors
07:03 <Ysjoelfir> that took way more time then I intended, so I stayed for 2 more years
08:11 <Lemon> I see
08:21 <Ysjoelfir> now the bachelors is done, I would be way more expensive, and now I have to go since the only thing I could do was the project with the power resistors and inductors I was working on, which is nearly finished
08:26 <Lemon> well at least, you have 4 months to find something else, from what I understand ?
08:33 <Ysjoelfir> well, not 4 months
08:43 <Lemon> but they dont have any other projects ??
08:49 <Lemon> they dont innovate at all ?
08:50 <Ysjoelfir> I have "think a few days about it and tell me how long you need to manage everything"-months
09:05 <Lemon> OK...
09:10 <Ysjoelfir> no. they don't. the regular product lifetime is around 15 to 20 years
09:16 <Lemon> well I'm fairly sure you wont stay long without something
09:57 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
10:16 <Ysjoelfir> I'm sure, too, but... how to pay that all?
10:17 <rust_collector> I guess you did learn something not everyone knows there. If you can use that anywhere else....
10:37 <Lemon> well you have to start looking right now :/ thats the sad thing...
10:47 <Lemon> but hey, you are a freaking electronic bachelor engeener !
10:51 <Ysjoelfir> I already started on my second screen
11:04 <Lemon> thats not like me with just a shitty basic diploma
11:35 <Ysjoelfir> since we also need to move I am luckily (?) pretty free in my decision where to go.,,
11:53 <Ysjoelfir> I thought about north germany... close to the danish border, to watch the fence they built
12:07 <rust_collector> kazakhstan?
12:20 <Ysjoelfir> Well, maybe not that far
12:43 <rust_collector> why not? thet have an awesome job for you there
13:08 <Ysjoelfir> well, but I don't speak ka... their language
13:35 <rust_collector> no one does, it is just something people think, on the internet
13:57 <Ysjoelfir> you always manage to make me smile at least a little bit rusty
14:04 <rust_collector> good
14:19 <rust_collector> so...
14:54 <rust_collector> what does the mrs say?
15:03 <Ysjoelfir> she is crying
15:13 <rust_collector> mmh
15:38 <Ysjoelfir> and she wants to be by herself right now, before someone asky why I am not with her. ;)
17:28 <rust_collector> well, that is no fun.
18:32 <Ysjoelfir> We thought that we finally managed to get some things sorted out, like health (they finally found the reason for her blood pressure and she began a therapy), her drivers license (she just started), managed to find some good friends, and.. well... thought that I finally found a great job after finishing my studies so we thought we could finally get our debts (? borrowed money on the bank) managed because of the better payment I would receive
18:33 <Ysjoelfir> after the studies
18:34 <Ysjoelfir> now..
18:36 <Ysjoelfir> poof.
21:09 <rust_collector> well, I dunno. I am not good at words and stuff. But you know what I think, I think
21:27 <Ysjoelfir> I think I know, yes. Thanks.
22:39 <Lemon> you both are brave, I'm sure you'll sort it out quickly, and find a better workplace !!
22:51 <Ysjoelfir> Thanks to you too, Lemon :)
24:40 <Ysjoelfir> However, I think I will try to make some middag. And after that I will try to finish my website so that I maybe can grow my self employment to something that gives at least a few bucks
25:04 <rust_collector> do a second site, and make "art"
25:17 <rust_collector> people like "art"
27:33 <DHess_US> JFC! https://imgur.com/gallery/g0xyoW3
31:23 <coppice_> DHess_US: that place has an enormous stock of carts
42:25 <Ysjoelfir> what the fuck....
44:44 <rust_collector> I bet they are out of drain cleaner
45:16 <Ysjoelfir> I'm sure they are!
45:46 <Ysjoelfir> Look. I took a photo of the drain cleaner section from out local REWE. https://drive.google.com/file/d/1S1AG26RxkAUY27l9YGU_DLrSmkSgIgCS/view?usp=sharing
45:50 <rust_collector> hmm, ave did a nice short video, with a great idea at the end
46:32 <Ysjoelfir> hmm?
46:37 <rust_collector> oh man, I think it is time to search for some drain cleaner, before all the shelves look like that
47:00 <rust_collector> https://www.youtube.com/watch?v=h9iJaN4HKG8
47:02 <Ysjoelfir> absolutely. thank good that I always have a great stock of drain cleaner
47:49 <rust_collector> yes, I mean, a generation or two ago, everyone had at least a few kg of the stuff
47:57 <Lemon> https://www.leboncoin.fr/bricolage/1750596075.htm/ !!! 93 euros with shipping !
48:35 <Lemon> its a 6.5 digits if im right !
48:45 <rust_collector> ok, it is probably a good thing, but you are still crazy
48:45 <Ysjoelfir> haha, nice solution from AVE
48:59 <Ysjoelfir> yep
49:02 <Ysjoelfir> the schlumbergers are nice
49:11 <Lemon> I cant find the info if its 6/5 or 5.5
49:16 <Ysjoelfir> speaking from precision gear...
49:25 <rust_collector> it is probably more than enough digits
51:02 <Lemon> if its a 6,5 digits and working I buy it
51:06 <rust_collector> why is there a mono button on it?
51:36 <Lemon> no idea, I have trouble finding the manual
53:10 <Ysjoelfir> ...hmm, I was sure that I took a nice pic of a datron DMM in our cal lab for you, lemon. Can't find it though... (the Solartron Schlumberger 7060 is a 6.5 digit, btw.)
54:14 <Lemon> haaa nice ! I love those pieces of gear honestly
54:21 <Lemon> if the guy tells me he still have it, and it works
54:23 <Lemon> I buy it
54:30 <Ysjoelfir> it's a Datron 1065A. It is one of the DMMs on my "nust have one day"-list
54:39 <Lemon> a 6.5 digit dmm working under 100 euros is a dope deal
55:52 <Lemon> but well, I'm fairly sure its either sold, or he dont want to send it, or he doesnt take paypal...
55:56 <Lemon> its always like this
56:53 <Lemon> I can't find the solartron 7060 manual !
56:58 <Lemon> can someone help me please ? :>
57:03 <Ysjoelfir> I don't have one, srty
04:41 <Ysjoelfir> the datron. I want onehttps://www.amplifier.cd/Test_Equipment/other/Datron_1065_Multimeter.htm
04:44 <Lemon> well we'll see for the solartron
04:51 <Lemon> the ad is one month old, not a good sign
05:06 <Lemon> haaaa those !
05:10 <Lemon> there was one on ebay I think
05:13 <Lemon> for not too much
08:42 <Lemon> I want a second 6.5 or better dmm, well 6.5 would be fine, I don't really need more and they are too expensive, but a second one would be really helpful
08:51 <Lemon> idk if the 7060 got gpib capabilities
09:32 <Lemon> hmmmm it seems it got it
09:43 <Lemon> damn now I'll be sad if I can't get it xD
11:42 <rust_collector> https://gofile.io/?c=J9qZAf
11:57 <rust_collector> not a manual, but at least it has some numbers you can look at
12:38 <Lemon> haaa thanks rusty !
14:04 <Lemon> it seems to be as accurate as my fluke, or close to it
14:41 <Ysjoelfir> bbut aFAIK i KNOW IT#S SLOOOOOOOOOOOOOW AS FUCK
14:47 <Ysjoelfir> sry caps
15:05 <rust_collector> yes, he should get a 7061
15:08 <Lemon> slow like how slow ?
15:13 <Lemon> I dont really care honestly
16:37 <Ysjoelfir> the 7061 is cool
17:05 <Ysjoelfir> how slow? dont know. I never owned one, but read once about it. I heard something like 1/s?
17:13 <Lemon> ho its perfect
17:19 <Lemon> as long as its not one reading per 10 sec
17:37 <Ysjoelfir> that cxould well be in 6.5 mode
17:40 <Lemon> well we'll see !!
17:43 <Ysjoelfir> hm
17:45 <Lemon> I dont want to think too much about it
17:52 <Lemon> because if I cant buy I'll be sdad :P
17:54 <Lemon> sad
17:56 <Ysjoelfir> nah. 6.5 shoul be fine
18:18 <Lemon> for now, time to sleep !
18:28 <Lemon> so I wish you all a good night, take care, and see ya tommorow
18:40 <Lemon> for a new episode of 'what should I buy today'
18:46 <Lemon> :>
18:48 <Lemon> bye peeps
18:59 <Ysjoelfir> gn8 Lemon
19:04 <rust_collector> ok, if you don't want it, good night
23:27 <DHess_US> https://translate.google.com/translate?sl=auto&tl=en&u=https%3A%2F%2Fwww.ecodibergamo.it%2Fstories%2Fbergamo-citta%2Fcon-le-nostre-azioni-influenziamola-vita-e-la-morte-di-molte-persone_1344030_11%2F
24:11 <rust_collector> https://www.ebay.fr/itm/Solartron-Schlumberger-Enertec-7061-2-7071-2-7075-7081-w-Fischer-connector/254539447819?hash=item3b43bbbe0b:g:0ysAAOSwcoFboffB
26:17 Quit: Lemon ([email protected]) Connection closed
52:31 <rust_collector> it is too late again
53:09 <Ysjoelfir> is it?
53:34 <rust_collector> yeah, I do not like these 5 to 7 shifts
53:42 <Ysjoelfir> meh
53:43 <rust_collector> it is ok for a day or two
53:53 <rust_collector> but... i must be getting old
55:38 <rust_collector> well, good night, and good luck, and put all your skills in a box, take some nice pics of them, because going around to show is.. probably not the best now
56:00 <Ysjoelfir> I assume so. thanks again and have a good nap :)
19:04 Quit: AndrevS ([email protected]) Quit: Leaving
22:19 Join: narayan ([email protected]) to #EEVblog
23:19 Quit: PsySc0rpi0n ([email protected]) Quit: leaving
24:15 Quit: narayan ([email protected]) Quit: leaving
27:14 Join: PsySc0rpi0n ([email protected]) to #EEVblog
27:14 Quit: PsySc0rpi0n ([email protected]) Changing hosts
32:15 <EEVBlog> New EEVBlog Tweet: NEW EEVblog Video! EEVblog #1292 - JVA Electric Fence Controller Teardown https://t.co/o16YeJmUU9
35:34 Quit: Ysjoelfir ([email protected]) Connection closed
03:00 <DHess_US> https://i.imgflip.com/3t02fn.jpg
12:34 Join: Guest|59263 ([email protected]) to #EEVblog
30:56 Join: JoePublic (JoePublicX`[email protected]) to #EEVblog
31:05 Quit: JoePublic (JoePublicX`[email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
59:02 <steve30> coffee time
45:11 <EEVBlog> New EEVBlog Retweet: Chris Anderson: We've got to homeschool four kids till September?? Oof https://t.co/E2WS5qWWpQ
47:43 * Ampera throws a blue oyster at mamalala 
49:37 <mamalala> otherwise... get fucked, you bozo :P
49:37 <mamalala> blue oyster?
49:37 <mamalala> that sounds suspicious
49:37 <Halcyon> T3sl4: Shhh, it was meant to be a surprise :P
49:37 <T3sl4> Ampera, their waffles are better
49:37 <T3sl4> Halcyon: on shoot
15:12 <EEVBlog> New EEVBlog Tweet: Left at my door. Looks a tad beat up. Was it delivered by dodgy brothers couriers? https://t.co/Cfm7DgUwWZ
40:23 <EEVBlog> New EEVBlog Retweet: 𝙿𝚛𝚘𝚏𝚎𝚜𝚜𝚘𝚛 𝙳𝚎𝚖𝚘𝚐𝚛𝚊𝚙𝚑𝚢: Snapping up toilet paper or rice is unAustralian hoarding. Snapping up houses using negative gearing is just Australians having a go getting ahead of others.
41:23 <EEVBlog> New EEVBlog Retweet: Dr Brad McKay: If scientists haven’t found a treatment for #COVID19 yet, you can be sure a bag of herbs is going to do f*ck all 🦠 https://t.co/OuthJG6CTs
45:52 Quit: Guest|59263 ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
11:55 Join: hsn ([email protected]) to #EEVblog
19:41 <EEVBlog> New EEVBlog Tweet: What kind of fresh new impersonal #YouTube comment hell is this? https://t.co/cpWz1xPwJn
24:43 <EEVBlog> New EEVBlog Retweet: It gets better, there is a Youtube video: https://t.co/LOpybdsk8m :Which was quoting: Mephitus LePew: I present, the "Baby Pod". So you can play music or vocalizations to your unborn child. Something tells me @eevblog would laugh his ass off at this. Yes, it's a real thing. https://t.co/fZOoo4Ycv0 https://t.co/oWlr0zHlIL
30:46 <EEVBlog> New EEVBlog Retweet: Mephitus LePew: I present, the "Baby Pod". So you can play music or vocalizations to your unborn child. Something tells me @eevblog would laugh his ass off at this. Yes, it's a real thing. https://t.co/fZOoo4Ycv0 https://t.co/oWlr0zHlIL
45:18 Quit: hsn ([email protected]) Ping timeout: 121 seconds
09:03 <EEVBlog> New EEVBlog Tweet: NEW Video on EEVblog2! NEW Youtube Comment Suggestions Feature. LOL! https://t.co/PWvEREltXn
33:14 <EEVBlog> New EEVBlog Retweet: cheeseburger: @eevblog lockdown Dave https://t.co/R32anMklDC
41:51 Join: hsn ([email protected]) to #EEVblog
45:55 <hsn> hola
45:58 <hsn> Ampera
54:45 Join: hsn93 ([email protected]) to #EEVblog
57:41 Quit: hsn ([email protected]) Ping timeout: 121 seconds
12:56 <T3sl4> https://www.reddit.com/r/nextfuckinglevel/comments/fk1fpo/demonstrating_a_24kv_underground_line_splice/
13:40 <hsn93> i dont know why this remind me of sausage
15:13 <hsn93> the sauce at the end :P
15:18 Quit: hsn93 ([email protected]) EOF from client
17:24 Join: hsn ([email protected]) to #EEVblog
24:51 <hsn> T3sl4 quick question ..
25:11 <T3sl4> yea?
25:47 <hsn> i've phy chip datasheet that required magnatic with (crosstalk -35 db @35MHz / -30 dB @60MHz)
26:01 <hsn> does that mean finding magnatic with less number is better?
26:10 <hsn> ie (-40dB = better) ?
27:14 <T3sl4> it's the ethernet spec, everyone gives the same numbers regardless whether they only barely meet it, or greatly exceed it
27:34 <T3sl4> though i doubt anyone much exceeds it, as they all use the same basic twisted-pair toroidial transformer designs
28:05 <hsn> for example this is in phy chip ( Table 7-4. Magnetics Requirements)
28:21 <hsn> Crosstalk -35dB@35MHz / -30dB@60MHz
28:48 <hsn> and this one from some magnatic module : https://snipboard.io/krLZmG.jpg
29:47 <T3sl4> hahaha pidgin thinks those @'s are mailto: links
29:49 <hsn> so i understand it like this (this magnatic is performing better than) what phy wants ..
30:02 <hsn> lol
30:31 <T3sl4> oh does your magnetic actually give better numbers? that's nice
30:45 <T3sl4> but yeah only has to be meets-or-exceeds, that's fine
31:26 <hsn> cool now i've to search about other dB words .. return loss ..etc
31:46 <hsn> thanks
31:56 <hsn> yesterday i'd wierd dream
32:14 <hsn> ampera was giving me some heap memory managment library
32:16 <hsn> xD
32:40 <hsn> me and lemon
38:36 <T3sl4> heh
43:26 <hsn> yeah and it was for microcontrollers .. somthing related to linux (dont ask why or how)
45:14 <hsn> there is (as usual) some keywords that i didnt understand so i'd to google them .. this is funny my mind creates (unknown keywords) in the dream
45:29 <hsn> but didnt google them as dream end up there
45:54 <hsn> so i've to google them **
47:18 <T3sl4> dreams are weird
49:58 <hsn> lets build a device that saves dreams into ssd
50:17 <hsn> thats my next dream
51:07 <hsn> when i was kid i used to try to do (lucid dream / astral projection) .. one day i'd dream inside a dream doing that thing ^
52:14 <hsn> https://en.wikipedia.org/wiki/Astral_projection ^
53:50 <EEVBlog> New EEVBlog Tweet: Simple engineering solution: Put a foot hook on the bottom of the bathroom door so it can be opened without touching the handle. It would help prevent an obvious spread point, and solve the current problem in photo #2 RT if you think it's a good idea. https://t.co/2DPI87gAga
55:20 <hsn> https://twitter.com/mattowens20/status/1240131117619036167/photo/1
55:44 <hsn> dave is working on uCurrent
07:17 <hsn> one more question about return loss (i want to understand it) .. i've got this table in phy (power consumption) . https://snipboard.io/WTbOdl.jpg
08:21 Join: Ysjoelfir ([email protected]) to #EEVblog
08:21 Quit: Ysjoelfir ([email protected]) Changing hosts
08:34 <hsn> the magnatics have return loss (-16dB) ..
10:04 <T3sl4> it's basically due to power dissipated by the pin drivers and termination resistors
10:09 <hsn> does that mean the following: if a phy transmits 337mW (~25dBm) and that goes to magnatic there will be (16dBm) power return due to reflection
10:18 <T3sl4> that's power dissipation, not output
10:32 <hsn> yes
10:39 <hsn> lets assume its output for now
11:40 <hsn> i dont know actual output right now .. need to dig in the medium dependent standard i guess
12:51 <hsn> so (25-16 = 9dBm) = 8mW reflected power ?
15:41 <T3sl4> correct
16:26 <T3sl4> for a linear, Thevenin equivalent, matched transmitter, that would be 8mW absorbed in the transmitter
16:54 <T3sl4> for a real device, it may be returned to the transmitter's supply, or extra drawn from it, depending on phase
17:56 <hsn> in reality = that 8mw will radiate + loss in transmittion before it get to transmitter so it might be 7mW@ transmitter right
17:57 <hsn> ?
18:00 <Ysjoelfir> hello
18:06 <hsn> hello Ysjoelif
18:06 <EEVBlog> Hello there, hsn!
18:07 <hsn> r
18:12 <T3sl4> hi
18:33 <T3sl4> radiation no, it's all between a source, load and transmission lines
18:34 <hsn> radiated + loss in the transmission line **
19:12 <T3sl4> https://www.ti.com/lit/ds/symlink/dp83848k.pdf page 11 says 2.5 and 1.0V (10/100) differential output, for a 100 ohm load that's 62.5 and 10mW respectively
19:29 <T3sl4> which implies the efficiency is less than 19% :)
19:37 Join: Spark_Gap ([email protected]) to #EEVblog
20:28 <hsn> but i always read (cables are antennas) so VSWR will also be radiated ?
20:35 <hsn> some of it ^
20:35 <T3sl4> which is consistent with a class A amplifier having maximum 25% efficiency
20:40 <T3sl4> no, not at all
21:08 <T3sl4> only common mode is radiated, and even then, only when the common mode fields have a radiating component
21:50 <T3sl4> you can put a diff pair inside a metal box and drive it with whatever modes you like, it's not radiating outside of that box
22:36 <T3sl4> wires in free space tend to couple nicely between common mode and radiative fields, so it's not a bad assumption to make, but not a sufficient one
24:21 <hsn> ok so (page 11^^) .. does that mean the magnatics = 100ohm impedance ?
26:03 <EEVBlog> New EEVBlog Tweet: Wow, oil is practically free at the moment. Pro Tip: Hoard that instead of TP
27:03 <EEVBlog> New EEVBlog Retweet: You Had One Job: I wasn't worried about Corona virus until I saw Rambo wearing gloves. https://t.co/KFEl08vqc2
30:02 <T3sl4> the magnetics are just coupling, they have little effect on the signal
30:10 <T3sl4> but the resistors are 50+50 ohms
30:23 <hsn> ah the termination resistors then
30:30 <hsn> ok
33:47 Join: AndrevS ([email protected]) to #EEVblog
41:11 <hsn> and where u calculate (efficiency 19%) .. u mean (62.5/10) ? or the table of phy power consumption ?
00:58 <T3sl4> output power over max power consumption
03:10 <Ysjoelfir> Guys?
05:39 <Ysjoelfir> I have a question. Which I may write down for discussion on EEVBlog forums, too... If you were the manufacturer of precision power analyzers, and right now you have the following products: 7 Channel, 4 Channen and 1 Channel Power analyzer. each channel in each analyzer can be equiped with varying accuracy and bandwith... what would you personally think is missing or where could you invent a new product?
06:14 <Ysjoelfir> meaning.... which product can I suggest my boss for developing, so that I can keep my job?
07:05 <Ysjoelfir> for some reason my idea of a 2 channel, medium precision, benchtop/portable device is always neglected as the sales dept thinks there won
07:11 <Ysjoelfir> t be any market for it.
07:19 <Ysjoelfir> meanings to that?
15:06 <T3sl4> hm, what good is 2ch? ground loop?
15:22 <T3sl4> i suppose the same goes for 4, but 4 is only 33% more than 3, and you need 3 for 3ph
15:53 <T3sl4> and some 3ph loads might ab/use N so it helps
16:35 <hsn> how many clients buy and destroy this instruments due to lack of knowledge?
17:02 <T3sl4> they're usually pretty robust...
19:33 <Ysjoelfir> they are insanely robust. even swapping voltage and current channels don
19:40 <Ysjoelfir> ffs, damn keyboard
19:47 <Ysjoelfir> don't kill the instrument
20:21 <Ysjoelfir> 2 channels would be good for efficiency measurements of single phase appliances with single output values
20:57 <Ysjoelfir> and ofcourse for everything a 1ch can do
24:03 <Ysjoelfir> (switched to another keyboard. that feels way better, even though I don't particularely like the non tactile cherry switches)
35:16 <hsn> im not in level of suggesting anything :P
35:41 <hsn> https://snipboard.io/Hx8MSR.jpg << correct ?
35:54 <Ysjoelfir> but you could save my job with your suggestion
36:36 <hsn> i was going to say (if there are clients who destroy the instrument) make it fool proof if possible ..
36:45 <hsn> but ^^ u know
38:03 <Ysjoelfir> "we try our best to make our devices idiot proof, but they keep inventing better idiots!"?
38:15 <hsn> yess
38:27 <hsn> idiots are me :P
38:31 <Ysjoelfir> :P
39:18 <hsn> how does people digitalize the measurments ?
39:20 <hsn> as graphs
39:26 <hsn> ethernet?
39:31 <hsn> and a software?
41:04 <Ysjoelfir> yes.
41:30 <Ysjoelfir> we have a software that basically mirrors the UI of the power analyzer,
41:30 <hsn> can it be done by (web server) and avoid software?
42:00 <Ysjoelfir> sure, you can send SCPI commands over ethernet or GPIB or Serial to the analyzer and display the answers any way you want
42:06 <hsn> my suggestions are dump probably ..
44:08 <Ysjoelfir> Why? every suggestions that can potentially keep me in my job are great suggestions, even if they are already implemented :) I appreciate every effort to help.
45:06 <hsn> the idea is to avoid installing softwares and use standard web browser instead .. (i like instruments that dont suggest installing their software) ..
49:32 <Ysjoelfir> aaah, so like just dialing in the IP of the instrument and then displaying the values. could be interesting. :) sadly not for my problem, since I am not a programmer but more a hardware developer
49:38 <hsn> do u feel (job insecure) ?
49:55 <Ysjoelfir> no. I am officially jobless in 4 months
50:00 <Ysjoelfir> +-
50:25 <hsn> i thought the idea is to suggest work that affects others lol
50:37 <hsn> and load them with lots of work
51:44 <Ysjoelfir> nah.
52:05 <Ysjoelfir> There just isn't any work for me left, so I have to go after my project is finished
53:03 <hsn> does your instrument mostly used to analyze motors ?
54:40 Join: jackbrown ([email protected]) to #EEVblog
55:10 <Ysjoelfir> no, it is used for several things
55:33 <Ysjoelfir> motors, inductors, solar applications, EV, chargers, trains,....
56:08 <hsn> does people who design motors need to apply different load at motor and measure torque against the instrument?
57:10 <Ysjoelfir> yes. The devices have (except from the single channel one) a PSI, a process signal interface, where you can connect all kinds of sensors
58:07 <hsn> this measures load angle (del)?
58:23 <hsn> i've no idea what does that mean btw ^ xD
58:36 Join: Lemon ([email protected]) to #EEVblog
58:49 <hsn> https://snipboard.io/FjOm5z.jpg
59:44 <Lemon> heloo bois
59:54 <hsn> hello peep
01:11 <Ysjoelfir> It can measure pretty much anything, hsn^^ that is why I would like to suggest a completely new product for the lineup instead of refining the old one
01:13 <Ysjoelfir> hi Lemon
02:18 <Lemon> haaaa the solartron is still available and it works ! but he wants a cheque
02:23 <Lemon> the guy seems honest
03:12 <Ysjoelfir> I have never seen a nation that is still using cheques as much as you french guys do
03:41 <Lemon> ha but I told you
03:50 <Lemon> frenchies are dumb af when it takes to sell/buy stuff online
04:13 Join: Halcyon_Work ([email protected]) to #EEVblog
04:19 * Halcyon_Work toots at Ampera
04:24 <Lemon> annnnd my supply/adapters are blocked until the 15 april
04:27 * T3sl4 doots Halcyon_Work
04:30 Nick: Halcyon_Work is now known as Halcyon_Canberra
04:30 <Ysjoelfir> Hi Halcyon_Work
04:30 <Lemon> they were supposed to be delivered today
04:33 <Halcyon_Canberra> :D
04:41 <Halcyon_Canberra> Oh that sucks Lemon
04:58 Nick: Ysjoelfir is now known as Ys_soon_unemployed
05:00 * Halcyon_Canberra gropes T3sl4 
05:05 <Lemon> yeah they suck they could have at least deliver items that were in transit
05:10 * T3sl4 grapes Halcyon_Canberra wrathily
05:18 <Halcyon_Canberra> Mmmm fruity
05:26 <Ys_soon_unemployed> why do they stop deliveries? they should just ring the bell, drop the shit and run
05:44 <Halcyon_Canberra> I am so happy, I will actually be getting half-decent broadband in the next few months!
05:46 <Halcyon_Canberra> :D
05:54 <Halcyon_Canberra> None of those half-baked bullshit
05:54 <T3sl4> unpossible
06:10 <Halcyon_Canberra> That's what I thought but they installed a new VDSL2 node around the corner
06:28 <Halcyon_Canberra> I'm thinking the 250/100 plan depending on what my sync speed it
06:30 <Halcyon_Canberra> *is
10:10 <Ys_soon_unemployed> nice. I have 300/40. I heard network is expensive in austraaaaalia? we pay 35.99/month for that
12:14 <Halcyon_Canberra> Yeh it is expensive but prices are coming down
12:41 <Halcyon_Canberra> That being said, I'm not with a "budget" provider either. So I get a static IPv4 address.
13:29 <Halcyon_Canberra> I also pay extra for decent CVC
14:42 Quit: Spark_Gap ([email protected]) Connection closed
15:15 <Ys_soon_unemployed> <-- no networks guy. what is CVC?
15:39 <hsn> cvc under your debit card
15:43 <hsn> 3 digit numbers
15:58 <Ys_soon_unemployed> I'm pretty sure thats not what he meant ;)
16:13 <hsn> IPV3
16:14 <hsn> :P
16:51 Quit: jackbrown ([email protected]) Quit: Leaving
18:54 <hsn> https://tools.ietf.org/html/rfc5265#section-2.3
19:00 <hsn> this one maybe then :)
20:31 <Lemon> gah im so pissed at mondial relay
21:00 <Lemon> and yet you can still pay on their website to send something
21:11 <Lemon> but after you paid 'ho sorry we dont send shit a anymore'
21:21 <Ys_soon_unemployed> mondial relay is your national shipping... thing?
21:31 <Lemon> yeah its a pickup service
21:38 <Lemon> that also works to send to some EU countries
21:47 <Lemon> much cheaper than 'La poste'
22:05 <Lemon> I mean ok they stop their service its fine
22:10 <Lemon> but at least, please deliver whats in transit
22:30 <Ys_soon_unemployed> that would be decent to do
22:47 <Lemon> but no its stuck until the 15 april, minimum
27:23 <Lemon> well at least I'll get the arb gen tommorow with some luck
27:35 <Lemon> comes with DHL
28:05 <Lemon> ha just got a mail
28:08 <Halcyon_Canberra> Ys_soon_unemployed: CVC = Connectivity Virtual Circuit
28:08 <Lemon> its todayyyy yay
28:31 <Halcyon_Canberra> It's basically the amount of bandwidth individual ISPs "buy" off the network owner (which is the Australian Government)
28:45 <Ys_soon_unemployed> ah, ok
29:11 <Halcyon_Canberra> So some cheap ISPs will over-provision (basically stuff more users onto an given amount of CVC)
29:29 <Halcyon_Canberra> Others are more proactive and increase their CVC as customer demand hits a certain threshold
29:48 <Lemon> im so tempted to buy the solartron with a cheque
29:52 <Lemon> I hate that but well
29:57 <Lemon> I want ittttttt
29:57 <Halcyon_Canberra> What the fuck is a Cheque?
30:00 <Ys_soon_unemployed> so basically like our shared connections? you have officially a 300MB/s contract but if more people use high data rates the transfer speeds go down.
30:03 <Halcyon_Canberra> I haven't seen one of those for years
30:09 <Lemon> that piece of paper from your bank
30:15 <Lemon> yeah I know frenchies
30:17 <Ys_soon_unemployed> same here, but those stupid french guys seem to be a bit old fashioned :D
30:20 <Lemon> some still use that
30:29 <Lemon> I fucking hate it
30:37 <Lemon> its been like multiple years I havent used one
30:38 <Halcyon_Canberra> Ys_soon_unemployed: Yes, so the CVC I'm connected to has a little over 3Gbps bandwidth, which services many suburbs
30:48 <Lemon> the last thing you usually use it is for cautions on flats, houses etc
30:51 <Lemon> when you rent it
30:53 <Halcyon_Canberra> When that hits about 80-90% utilisation, the ISP buys more capacity
31:07 <Lemon> but 93 euros for a working solartron 7060....
31:27 <Ys_soon_unemployed> I recently got a cheque from my car insurance, as I got some money back. I had to realy make some research how to get money out of that piece of paper.
31:41 <Ys_soon_unemployed> Halcyon_Canberra - ok, I think I get it :)
31:44 <Lemon> hah ayeah you have to deposit it in those big boxes at the bank
31:47 <Lemon> in an enveloppe :>
31:48 <Halcyon_Canberra> Most people here don't even carry cash, let alone cheques
31:56 <Lemon> yeah credit card ftw
31:58 <Lemon> paypal
32:02 <Lemon> thats how I work
32:18 <Halcyon_Canberra> But yeh, think of it this way: Your LAN bandwidth (CVC) is 1 Gbps, but it services many users are you don't use that 1 Gbit all the time
32:33 <Halcyon_Canberra> *as
32:58 <Halcyon_Canberra> So the maximum speed for all or any one connection is 1 Gbps, but most of the time it's idle (or low)
34:19 <Lemon> I wonder how much kg the hp 5345a and fluke 8502a can handle
34:29 <Lemon> the tds 540 is fairly heavy, maybe close to 20kg
34:54 <EEVBlog> New EEVBlog Tweet: So much LOL https://t.co/1I4EqustHT
35:50 <hsn> T3sl4 :: https://thiscatdoesnotexist.com/
36:26 <T3sl4> yeah
36:53 <T3sl4> interesting how it finds the body to generally be an amorphous furball, but generally renders the face in great detail
36:54 <EEVBlog> New EEVBlog Retweet: Joseph Skewes: This is a frightening prospect if we saw a 3 month lockdown: "..taking the very optimistic assumption that only 25% of jobs are lost in the "Dead" sectors, & 5% job losses in impaired sectors, at least 7.5% of all jobs will be lost by the end of this." https://t.co/Qs0EE6rmr6 https://t.co/OcnAQDxuMb
37:20 <Halcyon_Canberra> Anyway dinner is almost ready, I'll talk to you guys when I return on the weekend
37:29 <Lemon> have a good meal
37:32 * Halcyon_Canberra slaps T3sl4 on the ass on the way out
37:38 Quit: Halcyon_Canberra ([email protected]) Quit: Leaving
37:55 <T3sl4> how rude, didn't even get me a glass of wine first!
38:52 <Lemon> goujat !
39:32 * hsn splash glass of wine on tesla face
40:06 * hsn is rudurer
42:06 <hsn> some of them are really bad T3sl4 https://snipboard.io/NerGSO.jpg
42:37 <hsn> the human was is crazy : https://www.thispersondoesnotexist.com/
43:59 <hsn> https://github.com/NVlabs/stylegan2 ^
19:09 <Lemon> just got the siglenttttt
21:06 <Lemon> works perfect, and the scope is measuring it perfectly too
23:50 <Lemon> really nice
24:53 <Lemon> im really happyyyyyy
25:16 <Lemon> and it seems theres a built in load because when I ouput a 4v p-p signal, the scope measures 4v p-p
26:14 <Lemon> sometimes its a bit less idk if its the generator or what
26:14 <EEVBlog> New EEVBlog Tweet: WTF @amazon The whole idea of the affiliate program is so that people can use your links to support you! Like it says here: https://t.co/q3uPoU7Msu https://t.co/hKPHxodVUD
26:27 <Lemon> for basic waves its perfect
26:36 <Lemon> other arb waves sometimes theres 300mv offset
26:39 <Lemon> idk honestly
28:35 <Ys_soon_unemployed> I like home office... its so quiet and I work that much more efficiently https://drive.google.com/drive/folders/1aKD_YHXeWASRT1RxBE_aSw7ny81SFZRi?usp=sharing
28:41 <Ys_soon_unemployed> nice to hear your arb arrived
30:51 <hsn> attention: cat @ work
33:28 <T3sl4> meow
34:03 <hsn> meow back
34:32 <Ys_soon_unemployed> But I'm still sad that I wont stay with that employer....
34:53 <Ys_soon_unemployed> couldn't find a better time, now that there is corona -.-
52:10 <T3sl4> find some work online?
52:31 <coppice_> "I work that much more efficiently" he says, while wasting time on IRC
53:01 <coppice_> "where would you like to work?" "At least 2m from anyone else"
53:26 <T3sl4> which reminds me, i'm shopping for parts as we speak
54:14 <K> hello
54:14 <EEVBlog> Hello there, K!
54:19 <K> yay
55:15 <coppice_> I hope there are people making zombie apocalyse movies right now. it would be sad if the opportunity to film desolate supermarket scenes cheaply was waste
55:22 <Ys_soon_unemployed> T3sl4: That's what I try to do. I also think about greatly pushing my self employment to support our finances.... say, your 7trannylabs, do you live from that?
56:01 <T3sl4> yes, though i could stand to bring in more business through myself rather than a 2nd party
56:18 <Ys_soon_unemployed> coppice_: well, I am making calls while typing, so... :) that works pretty well. Also I often get great ideas while talking to you guys and discussing stuff.
56:32 <Ys_soon_unemployed> T3sl4, excuse me, I guess my english is a bit wonky here. what do you mean?
56:54 <K> sad to read about your job, Ysjoelfir
56:59 <T3sl4> my largest customer is also a contractor
57:26 <T3sl4> but that means i don't have to worry about marketing, project management or a number of other resources that they have, so it's a good deal
57:55 <Ys_soon_unemployed> aaah, ok, I guess I understand. thanks for elaborating.
58:46 <Ys_soon_unemployed> We have a long time "employee" at work who is actually self employed but comes to work every day for around 35 years now. he writes a bill every month isntead of getting a paycheck.
58:51 <Ys_soon_unemployed> is that basically what you mean?
59:04 <T3sl4> that's basically my relationship with them, yes
59:05 <Ys_soon_unemployed> K: thanks, i appreciate it
59:31 <T3sl4> though i don't come in every day, as i'm not needed, or not available, all the time
00:36 <Ys_soon_unemployed> well, yes, Harald (our guy) isn't there every day either, but I would say on average 4 days a week.
01:25 <hsn> Ys_soon_reEmployed ?
02:05 <hsn> how is UpWork Ysjeolfir did u try it ?
02:38 <Ys_soon_unemployed> that would be great ;P
02:49 <Ys_soon_unemployed> I did. upwork didn't work yet, but I got a small job on freelancer
03:05 <Ys_soon_unemployed> and a somehow bigger one, but they denied after I was initially accepted
04:03 <hsn> im afraid to start freelancing .. i dont want to do somthing that i know allready .. i afraid to take somthing that i dont know allready :(
04:43 <Ys_soon_unemployed> that was the thing with writing application notes. I had to send them ideas for applications I would like to write about, but they were not satisfied with my ideas, as they were either to complicated (a flyback PSU controlled by their analog/digital/configurable PSOC like thing, wtf is complicated there!?), or "already been done" - well, I didn't manage to find any simmilar things there
05:12 <T3sl4> heh
05:37 <hsn> maybe they took the ideas for free?
06:03 <Ys_soon_unemployed> when freelancing it would be beneficial to do things you know, when it isn't strictly advertised as a researching task imho
06:10 <Ys_soon_unemployed> [12:05:37] <hsn> maybe they took the ideas for free?
06:13 <Ys_soon_unemployed> ^ I assume so
07:49 Nick: Ys_soon_unemployed is now known as Ys_soon_unemployed^AFK
08:04 <hsn> i like this explaination : Unfortunately, the individual GDTs never trigger at exactly the same time. Whichever GDT triggers first will effectively ground that particular conductor. The result is that a differential surge voltage with a very fast rise time is created between that particular conductor and all of the other conductors.
08:07 Nick: Ys_soon_unemployed^AFK is now known as Ysjoelfir
08:07 <Ysjoelfir> meh, that is application-wide afk? thats shit
10:30 <Ampera> Ysjoelfir, are you getting canned?
12:56 <hsn> Ampera!!!
13:02 <hsn> where r u man
13:20 <Ampera> home
13:46 <hsn> last night i dreamed about u in the chat xD
13:54 * T3sl4 hugs Ampera
13:55 <Ampera> that's creepy
14:31 <hsn> <hsn> yesterday i'd wierd dream
14:31 <hsn> <hsn> ampera was giving me some heap memory managment library
14:32 <hsn> <hsn> xD
14:32 <hsn> <hsn> me and lemon
14:53 <Lemon> :o
14:56 <Ampera> libraries are for losers
15:00 <hsn> now u have to share it for real
16:03 <Ampera> #include <stdlib.h>
16:10 <Ampera> there now you have malloc calloc and realloc
16:16 <Ampera> all the memory management you'd ever need
16:19 <hsn> it was for microcontrollers
16:35 Join: Spark_Gap ([email protected]) to #EEVblog
16:35 <hsn> so sbrk and stuff
17:09 <K> americans giving stuff away for free? what?
17:17 <Ampera> yeah
17:22 <Ampera> air isn't free
17:25 <Ampera> walking isn't free
17:28 <Ampera> why should information be free
17:41 <K> pay up, hsn
17:47 <hsn> how mush
17:51 Join: Lemon_ ([email protected]) to #EEVblog
18:13 <Ampera> enough to fix the Dow, and you'll have whatever you want
18:14 <hsn> accept (work exchange) ?
19:29 <hsn> do u accept paypal
19:29 <Ampera> excited for when I can buy a 3000 series card, that way I won't have to buy hunks of plastic like the 1660Ti I just bought
19:51 <Lemon_> 1080 for the win mannn
19:57 <Lemon_> 200-250 euros used !
20:10 <Lemon_> 2000 cards were meh, if you ask me
20:18 <Lemon_> as pervious gens were avalaible used for a nice buck
20:26 <Ampera> I really really do not trust used graphics cards
20:38 <hsn> do u trust me ?
20:42 <Lemon_> boarf you risk close to nothing
20:42 <Ampera> I trust nobody
20:46 <Ampera> that's why I'm not dead
20:47 <Lemon_> actually I had more problems with new cards
20:51 <Lemon_> because of doa's
21:01 <Lemon_> a used one worked for many months, so why not many more ? :>
21:08 <hsn> i trust t3sl4
21:21 <hsn> he gives few sparks though
21:28 <T3sl4> especially not yourself, Ampera
21:36 Quit: Lemon ([email protected]) Ping timeout: 121 seconds
21:36 Nick: Lemon_ is now known as Lemon
21:44 <Ampera> With DOAs, that means I can return it and get a new one
21:45 <Lemon> okkk
21:48 <Ampera> since I have a large corporation backing it
22:08 <Ampera> Even if I get it through a nicer platform like ebay, I still have to deal with the carnage that is ebay returns
22:21 <Lemon> thats true yeah but still, used cards/cpus stuff like that are much more safe than what people think
22:33 <Lemon> paypal helps a lot for that
22:36 <Lemon> but yeah I understand
22:42 <Lemon> you get to save a lot though
23:00 <Lemon> I paid 200 euros for a 1080 which got close performances of a 2060 super, or a 2070
23:07 <Lemon> which is like, twice more expansive
23:09 <Lemon> expensive
23:13 <Lemon> or was, at that moment
23:33 <Ampera> I also want a 3000 series card because if I am to be spending money, I need to know I'm getting something good for it
23:35 <Lemon> same for those two 16c/32t xeons for 250 euros each
23:36 <Ampera> otherwise it's not worth it
24:02 <Lemon> yeah id say it all depends on the price/perf ratio, if you are interested by it or not
24:03 <Ampera> well with CPUs I specifically wanted the 3950X
24:18 <Ampera> which afaik currently outperforms every single chip intel has ever made in the vast majority of applications
24:44 <Lemon> yeah they are pretty neat
24:49 <K> prepearing for doom eternal, Ampera?
24:55 <Lemon> I wanted lots of cores for cheap, and ability to use ecc ddr4 as its cheap
24:59 <Ampera> no, Half-Life: Alyx actually
25:16 <Ampera> I don't usually plug stuff like this, but I'm planning on streaming it if anyone's interested
26:30 <Ampera> https://cdn.discordapp.com/attachments/310478241989263371/689224274946293775/IMG_20200316_172951.jpg
26:35 <Ampera> picture of my machine if anyone was curious
27:18 <Ampera> I'm still debating if I want to keep that second GPU in there, since I'm messing around with IOMMU crap and not having a great time of it.
29:51 Quit: Spark_Gap ([email protected]) Connection closed
31:02 <hsn> its clean
32:22 <Lemon> I see on my scope that I have two coupling? options, 1M and 50 ohms
32:30 <Lemon> as my gen got a 50 ohms ouput
32:36 <Lemon> I need to put it on 50ohms right ?
32:39 <Lemon> that seems logical
32:47 <Lemon> but it was on 1M and I dont see the difference
32:49 <Ampera> mmm, five COVID-19 cases in my county
32:53 <Ampera> neat
32:59 <Lemon> where you at ?
33:04 <Ampera> New York
33:08 <K> Covid county
33:14 <Lemon> damn only five
33:34 <K> out of how many?
33:37 <Lemon> I want to practive rubiks cube more
34:19 <Ampera> we have a pop of around 155,000
36:46 <K> here in .lv we have 90 cases, population is just under 2M, but majority are in capital, population a bit less than 1M
37:01 <K> it is pretty tame for now
38:56 <K> you can buy tp without problems, but hand sanitizers are out of stock
39:21 <Lemon> and yet I have to write a paper if I want to go buy cigarettes
39:30 <Lemon> because theres 100k cops in france that are riding around
39:39 <Ampera> well stop sucking fags and you won't have this problem
39:47 <Lemon> replace cigs with food
39:57 <Lemon> or meds, whatever
40:03 <Lemon> seeing familly
40:51 <Ampera> I don't think I'll ever have to worry about having too many tabs open
40:51 Join: hsn93 ([email protected]) to #EEVblog
41:32 <Lemon> boarf I reached 300+ the other day (they dont show after like 80) on chrome, it took 12 gigs of ram
41:36 <Lemon> so idk why people go nuts
41:40 <Ysjoelfir> first: ampera - nice, looks very clean indeed. I like it :)
41:42 <Ampera> because it depends on the kinda tab
41:50 <Ysjoelfir> second: [12:10:30] <@Ampera> Ysjoelfir, are you getting canned?
41:51 <Ysjoelfir> yes
41:57 <Ampera> but I've opened thousands at once and have definitely overrun my 16GB
42:03 <Ampera> now that I have 64GB I'd have to try very hard
42:09 <Lemon> tons of youtube, various shit with flash things or whatever
42:12 <Ampera> Ysjoelfir, anything COVID-19 related or just a coincidence?
42:21 <Lemon> yeah 64gb here too, thats enough I think
42:35 <Ampera> Lemon, chromium also deactivates inactive tabs
42:52 <Ampera> what I was doing was downloading a lot of images, which were all being kept in memory, along with the infrastructure for running a tab
42:57 <Lemon> yeah no idea I just see people memeing about it all day
42:59 <Ampera> so after a couple thousand images, things start getting iffy
43:19 <Ampera> holy shit I just turned on my Windows VM and the memory usage jumped from 9GiB to 25GiB
43:37 <Lemon> you give it 16 gigs ? generous boi !
43:39 <Ampera> I think that may be allocated rather than anything else
43:41 Quit: hsn ([email protected]) Ping timeout: 121 seconds
44:04 <Ampera> well what else am I supposed to do with 64GB of ram
44:10 <Ysjoelfir> Ampera - because they didn't manage to find projects for me to work on. at least thats what they said to me
44:13 <Lemon> just flex
44:30 <Lemon> my excuse is it was cheap
44:39 <Lemon> it costed me like, 130 euros for 64 ?
45:04 <Ampera> for me I think it was around 250GB, but this is DDR4-3200
45:14 <Ampera> if you have DDR3 then that's actually even a bit expensive
45:23 <Lemon> yeah its just ddr4 ecc 2133 here I think
45:24 <Ampera> well, maybe about right
45:27 <Ampera> oh
45:32 <hsn93> ddr3 more expensive ?
45:34 <Ampera> well then that's a pretty good deal
45:37 <Ampera> ddr3 is cheaper
45:45 <Lemon> ddr3 ecc was a tad cheaper but not a ton
45:52 <Ampera> ECC DDR4 @ 64GB for 130 EUR?
45:53 <Lemon> that made me decide on which platform to get
45:53 <Ampera> damn son
46:16 <Ampera> woah, the euro and USD are almost neck and neck
46:17 <Lemon> those two e5 2698vv3 for 520 euros both got me 'ok lets go for ddr4 platform'
46:20 <hsn93> 64GB? wait what r we talking about ?
46:25 <Ampera> 275USD (cost of my RAM) is 250 EUR
46:41 <Ampera> Lemon, those are v3's?
46:45 <Ampera> then that's DDR3
46:45 <Lemon> yeah
46:49 <Lemon> nope
46:55 <hsn93> is it 64 Giga-bit ?
46:56 <Lemon> ddr4 for v3 and v4 e5
47:06 <Ampera> broadwell is DDR3 though
47:14 <Lemon> yeah for some, thats true
47:28 <Lemon> for highend ones it uses 2133 ddr4
47:38 <Lemon> even 2400 but im not sure about this
47:40 <Ampera> huh
47:43 <Ampera> you're right
48:03 <Lemon> the mobo was like 200 euros, the biggest mofo I ever saw in my life
48:04 <Ampera> that's nuts
48:13 <Ampera> my motherboard was around 210 USD
48:23 <Ampera> but I bought a nice one
48:26 <Lemon> of an unknown format bigger than EE-ATX (extended extended atx, yes it exist)
48:29 <Ampera> all of the parts I opted for nice stuff
48:35 <Ampera> https://pcpartpicker.com/list/ndQdJb
48:38 <Ampera> this is my PC right now
48:47 <Ampera> add a second 1TB NVMe 3.0 SSD
50:04 <Lemon> nice one ! besides those cpus/ram, I have a 500gb evo 970 nvme m2 ssd, a 1tb samsung whatever is it (last ones, 860 ? I keep forgetting)
50:09 <Lemon> couple 4tb hdds
50:15 <Lemon> a 1080
50:30 <Lemon> had three screens but now only two, instruments take too much space
50:43 <Lemon> and the case is the only one that would take my mobo
50:47 <hsn93> would u breath from 3d printed valve : https://www.theverge.com/2020/3/17/21184308/coronavirus-italy-medical-company-threatens-sue-3d-print-valves-treatments
50:48 <hsn93> ?
50:50 <Lemon> a phanteks, which is neat honestly
52:22 <Ampera> I have four monitors
52:43 <Ampera> and I think they're gonna be my next upgrade, they're all mismatched (one is a TV) all different sizes all different resolutions all different screen tech
52:44 <Lemon> 11k dollars...
52:46 <Lemon> bitches
53:04 <Lemon> heh nice ! 3 was already a lot, I live well with two
53:11 <Lemon> the third was just for music most of the time
53:25 <Lemon> I just got some asus 1080p 75hz with eye care
53:29 <Lemon> like, 85 euros new a pop
54:00 <K> hsn93, yes, i prefer breathing
54:04 <Ampera> Medical companies are fucking thieves
54:15 <Ampera> It's even worse in the US
54:16 <Lemon> 11k for something that cost them close to nothing
54:25 <K> and company will get fucked, esp. in Italy
54:35 <Lemon> that reminds me those salt water pouches or whatever is it called in teh US
54:38 <Lemon> costing 600 dollars
54:48 <Ampera> saline?
54:52 <Lemon> yes sorry
54:55 <Ampera> eh that sounds like a stretch
55:08 <Lemon> ho that wouldnt surprise me
55:18 <Lemon> I saw that on multiple places some years ago
55:23 <Lemon> it made some buzz
55:34 <Ampera> damn you seem to be right
55:46 <K> bbut socialism!
55:46 <Lemon> im always right, even when im wrong !
56:00 <Lemon> in france thats the same
56:05 <Lemon> well, same everywhere sadly
56:16 <Lemon> when we buy meds for our 17 cats, damn you should see the price
56:26 <Lemon> 12 euros a piece for anti fleas
56:32 <Lemon> that doesnt work all the time
56:42 <K> an unpopular opinion would be that 17 cats is a tad too much
56:57 <Lemon> yeah sure but they are all rescues you know
57:07 <Lemon> people take cats, let them die outside, they end up here
57:13 <Lemon> and well, we help them and they became ours
57:21 <Lemon> we try to sterilize all of them but its expensive
57:26 <Lemon> a good 100-150 per cat
57:31 <Lemon> right now most of them are
57:49 <K> coax a family member into becoming a vet
59:09 <Lemon> my ex gf mother was
59:27 <Lemon> but she had a bicycle accident, and never worked again
59:47 <Lemon> never saw someone who got that fucked up with a bike accident, at slow speeds
00:04 <Lemon> double fracture of an arm, a rib, head damages etc
01:06 <K> hit by a bus?
01:30 <Lemon> no she just fell by herself, we dont know how
01:35 <Lemon> we just found her unconscious on the road
01:58 <K> sounds bad
06:26 Join: Spark_Gap ([email protected]) to #EEVblog
06:41 <Lemon> pffff I really want that solartron but I hate paying by cheque
06:51 <Lemon> but fuck a working 7060 for 90 euros total
06:55 <Lemon> thats hard to miss
10:20 <Ysjoelfir> you could also gift that money to a poor soon to be unemployed engineer
10:29 <hsn93> https://snipboard.io/Sjzspu.jpg < why 2250 Vdc is there ?
10:29 <Ysjoelfir> or the solartron for that matter
11:15 <Lemon> im an unemployed non engineer :(
11:55 <hsn93> im an employeed non engineer :P
12:04 <hsn93> i mean fck certificates :)
14:03 <hsn93> Ysjoelfir, does ethernet pulse transofrmers have isolation of 6kV ? specified as in datasheets?
14:46 <Ysjoelfir> the one I have implemented in a ~2 year old project was somewhere around that number, yes
17:42 <coppice_> They are usually around that number for short term electrical stress. I think the minimum required by the ethernet specs is 4kV continuous, but I could be wrong
19:26 <coppice_> hsn93: 1500*1.4142 is about 2250
20:28 <hsn93> why would they put it Vdc it should be Vpk ?
20:33 <coppice_> oh, no its not. its only 2121V. I was assuming it would be 2250
21:18 <hsn93> ya but still 1500vrms is the standard so maybe they are 1590Vrms but they wanted to put it 1500
21:39 <coppice_> its common to have a DC spec that is the peak of the RMS AC spec
31:37 <hsn93> doesnt they come with somthing like 6kV isolation ?
33:12 <hsn93> https://incompliancemag.com/article/designing-ethernet-cable-ports-to-withstand-lightning-surges/ << this article says that
33:13 <hsn93> Specially designed high-isolation Ethernet transformers are available with guaranteed surge tolerance that exceeds 8 kV peak.
34:34 <hsn93> oooh found one https://www.digikey.com/product-detail/en/pulse-electronics-network/HX1224CNLT/1840-1069-1-ND/8120488
36:46 <K> $7.4 a pop
37:15 <K> what are you building, hsn93 ?
38:05 <hsn93> i my self dont know hahhaahh
39:18 <hsn93> im trying to build ethernet interface for the first time (hardware + software) prefer not embedded rj45 connector
40:20 <hsn93> i didnt check required isolation / surges / eft stuff but just checking whats available
41:14 <hsn93> this is for rolling stock though ..
41:22 <hsn93> rolling stock application
43:51 <hsn93> https://snipboard.io/UGEIl3.jpg ^^ there are different levels some exceeding ethernet 1500Vrms .
45:27 <K> ah.
46:09 <K> train stuff is not for wimps
47:22 <Lemon> lool in the siglent manual, troubleshooting : 'check power cable' 'turn switch on' ' restart' 'if it doesnt work, call siglent'
47:24 <Lemon> yayyyy
47:38 <hsn93> i'd idea of designing a prototype with embedded rj45 and keep enough distance for later (to change it to somthing more robust)
47:40 <Lemon> when you compare it to the wavetek 164 manual, theres like 50 pages dedicated to steps to troubleshoot it
48:00 <hsn93> but then (i dont know how much is good distance and all sort of stuff) so im researching little bit ..
48:25 <hsn93> K, im certainly a wimp :P
48:57 <K> well, if you get paid for it, not a wimp
49:43 <hsn93> if it passes standards .. im not a wimp
50:10 <Lemon> on my siglent gen, theres a 'counter' bnc output? at the rear
50:15 <Lemon> idk if its an input, or ouput
50:24 <Lemon> and in the manual they dont talk about
50:35 <Lemon> if its an ouput that would be nice, I could use my hp counter
50:55 <T3sl4> bizarre, i can't save this library file
51:28 <Lemon> ha ok its an input for the built in counter
52:36 <K> save it from what?
53:28 <T3sl4> i paste a new component into the library, CTRL+S, it seems to go through the motions saving, but the filename still has a * showing modified, and the file isn't actually updated, or saved with the new contents anyway
53:55 <K> out of disk space?
54:46 <T3sl4> nah
57:28 <hsn93> which program T3sl4
57:41 <hsn93> is it on network?
57:44 <T3sl4> Altium
57:45 <T3sl4> local
58:36 <hsn93> save as ?
58:59 <hsn93> and backup old .. and replace it .. re open ?
Search this day's buffer: