// #eevblog — 2020-02-26
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00:01:18 <Lemon> hey Ysjoelfir
00:01:31 <Ysjoelfir_B_of_Eng> yes?
00:01:38 <Lemon> do you think I can stack the wavetek on top of those three pieces ? the fluke/counter/scope ?
00:01:51 <Lemon> its not too heavy but idk what is 'too' heavy :>
00:01:56 <Lemon> I dont want to damage anything
00:02:13 <Lemon> even if the counter/fluke seems sturdy af, the counter is like 17kg, fluke 12
00:02:17 <Ysjoelfir_B_of_Eng> can you link the stackup you showed yesterday?
00:02:29 <Lemon> https://imgur.com/a/MZzcTqn
00:03:09 <Lemon> idk how much is the 164, maybe 6-7kg big max
00:03:11 <Ysjoelfir_B_of_Eng> I would put the scope on top, but else... yep, should work. I have stacked way heavier things ;)
00:03:13 <Lemon> it feels light
00:03:48 <Lemon> I think the scope is heavier than the wavetek, the wavetek got a plastic enclosure that im not trusting too much
00:03:51 <Lemon> yeah then perfect
00:03:57 <Ysjoelfir_B_of_Eng> you know, like the power analyzers we build... those are up to 26 kilo a piece. I once stacked three of those on top of a HP3456A. No harm was done
00:04:00 <Lemon> I'll be able to put more shit on the desk :>
00:04:06 <Lemon> damn Xd
00:05:16 <Lemon> im impressed by the keithley
00:05:19 <Lemon> its still pretty bang on
00:05:38 <Lemon> same for the fluke, its not out by much, and theres the temperature to take in account too
00:05:42 <Lemon> warmup time etc
00:05:46 <Ysjoelfir_B_of_Eng> my keithley 199 is also pretty good even after me fiddling around in it...
00:06:07 <Ysjoelfir_B_of_Eng> has anyone a recommendation for a very small, cheap usb stick?
00:06:23 <Ysjoelfir_B_of_Eng> I am thinking about... like.... 3€ for ~8gb if I take 20.
00:06:44 <Ysjoelfir_B_of_Eng> best one I could find was 5€ for 16GB in single pieces. so i think that should be realistic
00:08:20 <Ysjoelfir_B_of_Eng> that is the cheapest one I found... https://www.amazon.de/dp/B004BLIQE6/
00:08:37 <Ysjoelfir_B_of_Eng> but i don't need 16gigs, even 4 would be much
00:13:27 <Lemon> wait a sec
00:15:12 <Lemon> hmmm theres those but yeah, hard to find under 16 https://www.amazon.fr/Kingston-DT100G3-16GB-DataTraveler-Flash/dp/B00C5K8D5W/ref=pd_sim_147_2/258-4253929-9339311?_encoding=UTF8&pd_rd_i=B00C5K8D5W&pd_rd_r=e59a3f07-a5e7-45e0-972d-21e9c791bece&pd_rd_w=i1ujN&pd_rd_wg=2ILHC&pf_rd_p=13666dbd-eacc-4961-ae51-8b11476bba29&pf_rd_r=HRVTYD0X5ATVXMJAGT2W&psc=1&refRID=HRVTYD0X5ATVXMJAGT2W
00:16:20 <Ysjoelfir_B_of_Eng> they are too big, to. I need the smallest size possible, basically just the plug and a bit to grab and pull it out
00:16:42 <Lemon> maybe those smallass sandisks but they aint that cheap
00:17:15 <Ysjoelfir_B_of_Eng> I guess the one I linked are the way to go. https://www.amazon.de/dp/B004BLIQE6/
00:18:26 <Ysjoelfir_B_of_Eng> intenso has one stick that is the same size, but only 4 GB and cheaper - around 10 cents. well, If I had to chose between 16 gig for 4.70€ and 4 gig for 4.60€ I would be an itiot to take the 4gb one, even when I don't need that capacity
00:19:23 <Lemon> you never know ! one day you'll maybe repurpose them :>
00:19:50 <Ysjoelfir_B_of_Eng> exactly
00:33:39 <Lemon> it seems that its specifically the 10v range thats out by 23mv on the systron
00:33:55 <Lemon> the 100v range shows 9,996 something which is alright
00:33:58 <Ysjoelfir_B_of_Eng> that shouldn'Ät be too hard to calibrate
00:34:11 <Lemon> yeah I can probably adjust it roughly
00:34:32 <Ampera> my ibook has decided it wants to work today
00:34:33 <Ampera> that's nice
00:40:04 <Ysjoelfir_B_of_Eng> And I am thinking about getting a Caterpillat B35 to replace my LG G...5(?) with its broken display
00:40:26 <Ysjoelfir_B_of_Eng> G6, not 5
00:41:41 <rust_collector> hey people
00:41:50 <Ysjoelfir_B_of_Eng> Hey Rusty
00:42:21 <Lemon> hello
00:42:25 <Ampera> hullo
00:42:38 <rust_collector> what have you done?!!? did you get caught by the name changing thing
00:42:58 <rust_collector> hey ho yo etc.etc.
00:43:05 <Ampera> no he has achieved a bachelor's of engineering with the highest grade
00:43:07 <Ampera> or something
00:43:22 <rust_collector> poor bastard
00:43:26 <Ysjoelfir_B_of_Eng> yeah, i know
00:43:34 <Ysjoelfir_B_of_Eng> so the name thing is a parody to that
00:43:57 <Ysjoelfir_B_of_Eng> since I can now call me a B.Eng. I should add it to ALL my names, everywhere, to show the world how great I am
00:44:07 <rust_collector> Ysjoelfir_Bastard_of_enginerding
00:44:23 <Ysjoelfir_B_of_Eng> exactely
00:44:59 <rust_collector> mom used to date a guy that really put his name on everything. It was... weird
00:45:58 <Ampera> yeah and I totally don't brand every project I ever make Amp<Name>
00:46:01 <Ampera> like AmpTE and AmpMC
00:46:08 <rust_collector> so, did you do an interesting powerpoint, and tell "funny" jokes?
00:46:38 <Ysjoelfir_B_of_Eng> We have one of those guys at work. A Dr. Dr. Rer. Nat. M. H.-K. (the last three were abbreviations of his name)
00:47:07 <Ysjoelfir_B_of_Eng> I actually did make an... powerpoint. if it was interesting? I don't know, but the prof liked it and gave me the top score
00:47:23 <rust_collector> that is one thing, but... this guy would write his name on todays newspaper, when he picked it up.
00:47:37 <Ysjoelfir_B_of_Eng> It's always a good sign when the only criticism you get is, that you had two spelling mistakes.
00:47:38 <Ysjoelfir_B_of_Eng> oO
00:47:43 <Ysjoelfir_B_of_Eng> that is extra weird
00:47:57 <rust_collector> ok, so you just need to sind a professor, that is really really bored
00:49:06 <rust_collector> I guess he was just filling in for his cousin, who was sick. this guy is a regular teacher, for the 6th grade
00:50:40 <rust_collector> well, I hope you have fun, with your nice underwear title.
00:51:05 <Ysjoelfir_B_of_Eng> oh yes, I feel much wiser since I acquired it
00:51:29 * Ysjoelfir_B_of_Eng crunches on some "extra hot" chips
00:51:52 <Ampera> gimme some
00:51:56 <Ampera> all i got are lame ass pretzels
00:52:00 <rust_collector> Ysjoelfir_B_of_England, munching on chips
00:53:02 <Ysjoelfir_B_of_Eng> Well, they are called "Lays STRONG", with Jalapen~~~~~~~~~~~o AND cheese, EXTRA HOT.
00:53:08 <Ysjoelfir_B_of_Eng> also, they were on sale
00:53:13 <Ysjoelfir_B_of_Eng> which is why I bought them
00:53:18 <Ysjoelfir_B_of_Eng> and they are pretty mild.
00:53:21 * Ysjoelfir_B_of_Eng hands some to Ampera
00:54:05 <Ampera> mmm
00:54:27 <Ampera> I once had ghost pepper chips from Trader Joes (Our Aldi North) and they were quite weak
00:55:13 <Ysjoelfir_B_of_Eng> those are... well, they have a taste to them, but they are in no way extra hot
00:57:32 <Ysjoelfir_B_of_Eng> My father in law likes to eat hot. like, really hot. deadly hot. the sauces he uses (like Brain Buzzer or Dragonfire Beast Killer) is what I call EXTRA HOT.
00:58:30 <Ysjoelfir_B_of_Eng> It's actually quite amusing when we go out to eat and he orders the hottest stuff they have and stil add some hot seasoning to it. sitting there, sweating like crazy, being like "aaah, that is still a bit mild", while the plate seems to be melting because of how hot that stuff is
01:00:44 <T3sl4> ahh, he likes it "thai native" level then
01:00:50 * T3sl4 hugs Ysjoelfir_B_of_Eng
01:01:39 <Ysjoelfir_B_of_Eng> yeah, around that. He always claims "thats like we Texan Rednecks like it!" - being in germany for over 37 years now...
01:01:46 * Ysjoelfir_B_of_Eng hugs T3sl4
01:02:14 <Lemon> hey Ysjoelfir, on the brass amp you gave me, those feets unscrew or I have to unglue them ?
01:02:55 <Ysjoelfir_B_of_Eng> they are glued with double sided sticky tape
01:03:38 <Lemon> gotem ! thanks
01:03:46 <Lemon> lets see whats inside :>
01:04:12 <Ysjoelfir_B_of_Eng> it's pretty disappointing, be prepared^^
01:04:28 <Ysjoelfir_B_of_Eng> as beautiful as they look from the outside, as shitty they look from the inside
01:04:29 <rust_collector> lm386 module, and 2 diodes
01:04:38 <Ysjoelfir_B_of_Eng> not quite
01:05:04 <Lemon> two black thingies
01:05:07 <Lemon> what are those ?
01:05:19 <rust_collector> gates of hell
01:05:30 <rust_collector> leave them alone
01:08:14 <Ysjoelfir_B_of_Eng> basically
01:08:16 <Ysjoelfir_B_of_Eng> :D
01:08:27 <Lemon> im curious :>
01:08:34 <Ysjoelfir_B_of_Eng> thb, I have no idea. I once thought they would be some sort of interstage transformer, but they are light as fuck
01:08:48 <Ysjoelfir_B_of_Eng> they are some sort of potted circuit
01:09:21 <Ysjoelfir_B_of_Eng> if you desolder them, you can see that there are some components inside, but what exactly - no idea
01:09:56 Join: hsn93 ([email protected]) to #EEVblog
01:13:55 <rust_collector> I think I might have to put on some heat here.
01:14:48 <Ysjoelfir_B_of_Eng> you should do that. otherwice you can't succeed!
01:14:51 <Ysjoelfir_B_of_Eng> *s
01:15:11 <rust_collector> ok
01:15:36 <rust_collector> yes almost doctor, right now
01:16:02 <rust_collector> pfff, maybe later. I think the wife is coming home, maybe she will
01:16:53 <rust_collector> it is not THAT cold. just enough to make me wish I had more than a t shirt on
01:17:59 <Ysjoelfir_B_of_Eng> how cold is the north this day?
01:18:17 <rust_collector> meh, it is 2 outside
01:18:39 <rust_collector> it was supposed to snow, but it looks like that didn't happen
01:19:54 <Ysjoelfir_B_of_Eng> wow.. its 10°C here. I would love to have some snow.
01:20:00 <Ysjoelfir_B_of_Eng> well, maybe to my birthday, if IÄm lucky
01:21:06 <rust_collector> it is 16 inside. I like it a bit more than that.
01:21:23 <Ysjoelfir_B_of_Eng> yeah. I prefer 18
01:22:06 <rust_collector> I am going west, to where the mountains start tomorrow morning. Maybe I should fill a cooler, and make le-mon come pick it up for you
01:24:15 <Ysjoelfir_B_of_Eng> do that!
01:24:45 <rust_collector> do you want yellow or black?
01:25:01 <Ysjoelfir_B_of_Eng> erm.. I prefer white.
01:26:47 <rust_collector> hahaaa
01:33:38 <Ampera> you racist motherfucker
01:34:13 <Ysjoelfir_B_of_Eng> hey, I'm a kraut, I have to be that by definition!
01:34:18 <Ampera> so am I
01:34:22 <Ampera> but I am also french
01:34:27 <Ampera> so i get to play sides
01:34:35 <Ysjoelfir_B_of_Eng> So yoou invade yourself?
01:34:50 <Ampera> yep
01:34:56 <Ysjoelfir_B_of_Eng> cool
01:37:51 <hsn93> you are cool
01:38:50 <Ysjoelfir_B_of_Eng> why? that?^^
01:40:21 <Ysjoelfir_B_of_Eng> see, you even got a ? for free there!
02:35:41 <hsn93> what?
02:36:22 <rust_collector> the ? one
02:36:30 <Lemon> ayeee got the lcr meter !
02:36:50 <rust_collector> I am waiting for your bench to tip over, lol
02:37:18 <mamalala> well, he surely doesn't need any extra heating anymore, if he turns all the old instruments on :P
02:37:53 <Lemon> thats kinda true lol
02:37:58 <Ysjoelfir_B_of_Eng> nah
02:38:04 <Ysjoelfir_B_of_Eng> he doesn't have a tek 500 series
02:38:09 <rust_collector> I hope ha has a main bench power switch, because when the smoke starts pouring out of a random device in the middle of his stack...
02:38:09 <Ysjoelfir_B_of_Eng> so no room heating there :P
02:38:15 <Lemon> ayeee they gave me a non eu psuuuu
02:38:41 <rust_collector> what voltages will it take?
02:38:45 <Ampera> what sort of PSU is it
02:38:58 <Lemon> ho those shitty main bricks, I might have one
02:39:02 <Lemon> 12v 1amps
02:39:04 <mamalala> does it even matter? he has a variac now, right?
02:39:12 <Lemon> I just need to find it :>
02:39:27 <Lemon> ha the variac needs an enclosure first !
02:39:34 <rust_collector> not really
02:39:43 <rust_collector> you just need dry skin
02:39:50 <mamalala> haha
02:40:40 <Lemon> well im just going to cut it and test from a supply
02:40:42 <Lemon> screw it
02:40:53 <rust_collector> schnipp!
02:41:32 <Lemon> hmm wires aint labelled, well it seems theres some faint white strips on one
02:41:44 <Lemon> I assume its positive ?
02:42:00 <mamalala> most non-musical devices have center positive
02:42:17 <mamalala> for some reason, stuff like keyboards, midi-synths, etc., usually have center negative
02:42:29 <Lemon> well you know its a small barrel jack
02:42:32 <Lemon> with two wires only
02:42:35 <mamalala> yes
02:42:51 <rust_collector> and the middle could be one of them
02:42:54 <mamalala> if in doubt, smash the supply brick open and check
02:42:58 <Lemon> which middle ?
02:43:02 <mamalala> the center
02:43:03 <Lemon> if theres only two
02:43:14 <mamalala> you have a center pin or hole, and an outer ring
02:43:17 <mamalala> sleeve
02:43:21 <Lemon> haaa
02:43:27 <Lemon> I can ring it wait
02:43:42 <rust_collector> no answer?
02:43:52 <rust_collector> ring ring! ring ring!
02:44:00 <mamalala> yes, but still doesn't tell you what the polarity should be.... to make sure you have to open the old supply brick and check there
02:44:37 <rust_collector> "old"
02:45:55 <Lemon> center one is the white strips one
02:45:58 <Lemon> so positive right ?
02:46:16 <rust_collector> you do not know that!
02:46:18 <mamalala> may be, may be not
02:46:25 <Lemon> ok lemme smashhh
02:46:33 <mamalala> heck, the chinese sometimes even use red = negative, black = positive
02:48:10 <rust_collector> I still wonder if the brick would take 240, just that it has the wrong plug...
02:48:15 <Lemon> ok wires snapped
02:48:21 <Lemon> fuck that shit I need to find a supply :>
02:48:43 <Lemon> anyway I need to get meds, Ill see that later
02:48:46 <Lemon> see you soon peeps
02:48:55 <mamalala> just use a lab supply, current limit set to 100mA or such, and assume that center = positive (which is most often the case for such gear)
02:49:54 Join: hsn ([email protected]) to #EEVblog
02:51:12 Quit: Lemon ([email protected]) EOF from client
02:52:01 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
03:20:00 Quit: hsn ([email protected]) Ping timeout: 121 seconds
03:34:07 <rust_collector> Hmm, hm hm hmmm... does anyone have a good idea about a reasonably easy and cheap way to measure "medium" dc current, at car voltages? to be read by an arduino or something like that? I am getting very tired of crappy handbrake that is always "sticky". I think I might go to the electric version, but I need some kind of control box for that
03:34:50 <rust_collector> I guess it would have to measure somewhere around 15 amps or so
03:34:58 <rust_collector> plus minus a bit
03:35:12 <Ysjoelfir_B_of_Eng> sure. there are many ways to do that :) I would use a.... erm... wait
03:35:17 <Ysjoelfir_B_of_Eng> lemme look that IC hall sensor thing up
03:41:10 <rust_collector> either that, or just something that would open a switch (or give some kind of signal) when current goes over "x" value
03:45:58 <mamalala> shunt, opamp/comparator, done
03:46:54 <Ysjoelfir_B_of_Eng> ah. found it. ACS712 https://www.allegromicro.com/en/Products/Sense/current-sensor-ics/Zero-To-Fifty-Amp-Integrated-Conductor-Sensor-ICs/ACS712.aspx
03:47:00 <rust_collector> so, measure voltage drop across a shunt? and compare to some set value?
03:47:08 <mamalala> yes
03:47:16 <mamalala> very easy
03:47:41 <rust_collector> I like easy
03:48:34 <Ysjoelfir_B_of_Eng> would also be possible, but for that application you would want a very low resistance shunt. and getting the opamp be resistant against all the crapton of noise floating around in a car application I wouldn't be so sure if that's what I would call easy.
03:48:46 <mamalala> google for "comparator with hysteresis"... it's just a few parts
03:50:27 <mamalala> Ysjoelfir_B_of_Eng: well, most hall current sensors don't like noisy supply voltages either, so some filering is needed in any case
03:51:30 <mamalala> using a dual opamp makes that easy... one half as lowpass filter for the signal, other half for the comparator
03:51:50 <Ysjoelfir_B_of_Eng> True, but the output of the hall would be already conditioned, while the noise could also be introduced into the signal voltage from the shunt
03:52:02 <Ysjoelfir_B_of_Eng> yes, that would be a good way to do it
03:52:07 <rust_collector> This will be used with a brushed motor, so i guess noise is a thing no matter what?
03:52:20 <mamalala> yes
03:56:00 <rust_collector> On one side, I guess the sensor would be usable in "both directions", so I would only need 2. One for each wheel. or... if I do the polarity change after the current sensing, I guess that would fix that issue.... hmmm
03:56:15 <rust_collector> well, thanks, I have to look at this a bit
03:58:58 <rust_collector> I suppose I could cheat a bit, and wire the motors in series, and make the current limit high enough, to make sure both motors have gone to where they are supposed to. and just hope they stay "balanced" enough
04:00:18 <rust_collector> they would be sort of reset at any time they were used, as they would just run until the current trips, so they should be in sync enough for this, even with just one sensing thingie
04:02:00 <mamalala> that assumes both motors have the same load... and in that case you only need to meassure one anyways
04:04:15 <rust_collector> well, they would be similar, but not exactly the same. this is ie a drill motor screwing a bolt into the brake pad, which is what makes the current rise, then hopefully turn off. same in the other direction, just that it would just stall out by jamming the bolt into the housing
04:06:31 <rust_collector> In some ways, it would make more sense to just weld a jack with a spike under the car. push it down, and it stays where it is.
04:09:43 Join: Lemon ([email protected]) to #EEVblog
04:10:16 <Lemon> am back
04:10:24 <rust_collector> that is true
04:10:32 <Lemon> I think I'll need to open the lcr meter :>
04:11:46 <Lemon> lets do that
04:11:53 <rust_collector> GO!
04:12:40 <Ysjoelfir_B_of_Eng> ogo ogo ogo!
04:12:48 * Ysjoelfir_B_of_Eng bounces around in the dungeon
04:13:35 <rust_collector> Booing booing booooing
04:17:39 <DHess_US> There is nothing wrong with a 10 milliohm current shunt made with 10 x 100 milliohm (0.1 ohm 1/2 watt or greater) resistors.
04:18:10 <Lemon> ok thats impossible to open
04:18:24 <Lemon> theres tons of screws, soldered connectors etc
04:18:28 <Lemon> im not taking a chance damaging it
04:20:02 <DHess_US> I've also built current shunts for cars just using a length of copper wire attached to a terminal block but the 600ppm/C temperature coefficient of copper makes it less accurate.
04:20:50 <rust_collector> I guess I can use a fairly high resistance, as it will just be used for ...3 seconds or so, then shut off, until the next time
04:21:29 <DHess_US> I'd usually want some easy scale like 0.15 volts per 15 amps which is 10 milliohms
04:21:33 <rust_collector> and, I do not think I need all that much presicion here.
04:21:50 <rust_collector> ok, that I guess makes sense
04:21:57 <DHess_US> So just make the shunt out of copper wire. You still need a 4 wire connection to the shunt.
04:22:21 <DHess_US> 10 milliohms is about at the limit of what is easily practical to do.
04:22:51 <DHess_US> 100 milliohms for 1.5 volts per 15 amps is easier but the power loss is 10 times higher.
04:23:21 <rust_collector> sure, but does power loss make much difference in a parkiing brake?
04:23:38 <DHess_US> It shouldn't.
04:23:51 <DHess_US> But maybe the surge current is much higher?
04:24:00 <Lemon> speaking of milliohms and cool stuff
04:24:00 <rust_collector> hmm, maybe
04:24:12 <Lemon> what could happen if I reverse the polarity ?
04:24:17 <Lemon> when trying to power the lcr meter
04:24:21 <rust_collector> no one knows
04:24:33 <Lemon> :(
04:24:36 <Lemon> but like really
04:24:37 <DHess_US> LCR meter?
04:24:47 <rust_collector> the heavens could open, and locusts will eat your house
04:24:51 <Lemon> yeah, they gave me a US power brick
04:24:57 <DHess_US> You mean reverse the signal or excitation leads on the LCR meter?
04:24:58 <DHess_US> Nothing.
04:25:00 <Lemon> and when I tried to open it to see the polarity, wires snapped
04:25:08 <Lemon> no no to power it
04:25:12 <Lemon> it needs 12v 1amps
04:25:17 <Lemon> but idk the polarity
04:25:30 <Lemon> I just assume the white strips that leads to the center pole of the dc jack is positive
04:25:33 <Lemon> but what if its not ?
04:25:59 <Lemon> it should be protected but well
04:27:12 <rust_collector> I would probably hacksaw the brick or something.
04:27:27 <Lemon> but even then
04:27:30 <Lemon> wires snapped
04:27:49 <mamalala> again, almost all non-musical gear with barrel jacks has center positive
04:28:08 <rust_collector> do you not think there are any remains of wire in there?
04:28:09 <mamalala> can't even remember the last time i saw one that had center negative
04:28:10 <Lemon> ok lemme use the supply and limit current as you said
04:28:11 <rust_collector> I dunno?
04:28:17 <Lemon> nah they snapped clean
04:28:32 <rust_collector> off the board inside? wow
04:28:56 <mamalala> and also, it's likely just the supply that was labelled 12v/1a, the unit itself is probably requiring much less current
04:29:04 <Lemon> yeah that suck balls I'll try mamalala idea
04:32:44 <Lemon> ok pray guys
04:32:49 <rust_collector> but is the supply marked with input voltage? Just because I am curious
04:33:04 <Lemon> ok lcd lighted up
04:33:14 <rust_collector> have fun then
04:33:15 <Lemon> i'll increase the current a bit
04:34:18 <Lemon> on the brick which is huawei one is marked : 180v-240v 0.5a 50/60hz and 12v-1.0a
04:34:27 <Lemon> but yeah low chances it uses 1 amp
04:34:36 <Lemon> I'll limit to 1 amp now that it lighted up
04:35:18 <rust_collector> No, I just mean that next time, I mean, if I had it, I would just use croc clips or something into mains, lol
04:36:00 <rust_collector> 180 to 240, that is a bit weird, no?
04:36:02 <Lemon> well I must be honest with you, that as im fairly beginning in this game, I don't like fiddling with mains :>
04:36:12 <Lemon> yeah thats weird
04:36:18 <Lemon> it can be 220 to 230 here max
04:36:45 <rust_collector> yeah, but I mean... meh, doesn't matter
04:36:59 <Lemon> yay its on
04:37:12 <Lemon> I must say im impressed by the quality for 58 euros
04:37:21 <Lemon> nice aluminium case, well made
04:37:28 <Lemon> screen is bright and readable
04:37:41 <Lemon> but I'll take some days to learn it, its complicated
04:37:56 <Ysjoelfir_B_of_Eng> which LCR meter did you end up getting?
04:38:06 <rust_collector> you still do not know if it does anything. but yes, I guess a 58 euro box is something
04:38:43 <Lemon> the xjw01 :>
04:38:53 <Lemon> lets measure something peeps !
04:39:27 <rust_collector> hook it up to your nipples, and see if you have much capacitance
04:40:49 <Lemon> ok I took a random 1.5ohms resistors, it measures 1501.9mOhms
04:40:54 <Lemon> guess it works :>
04:41:03 <Lemon> you want to know my capacitance ? alright
04:41:39 <Lemon> 5.034 nF
04:41:54 <rust_collector> not bad, for a frog
04:42:40 <Lemon> hehe
04:42:44 <Lemon> it makes the weirdest noise lol
04:42:49 <Lemon> like, duiiii
04:42:58 <Lemon> and theres some relays inside
04:43:16 <Lemon> it uses 100hz, 1khz and 7,8khz to test caps if Im right
04:43:36 <rust_collector> what did it use on you?
04:43:42 <Lemon> 1khz
04:43:59 <rust_collector> or does it use all of them, and average it out, sort of
04:44:01 <rust_collector> ok
04:44:35 <Lemon> those decade boxes are pretty bang on
04:45:08 <Lemon> on the highest setting which is 110mH it shows 110.18mH
04:45:10 <Lemon> its nice
04:45:46 <Lemon> lets try the 100mH one
04:46:40 <Lemon> ha, this one got problems
04:46:50 <Lemon> most of the time it doesnt read anything besides ohms
04:47:02 <Lemon> strange
04:47:27 <Lemon> lets try the cap one
04:48:09 <mamalala> maybe you need to set it to meassure inductance, instead of auto-mode, or something
04:48:25 <Lemon> the first one figured it out but well
04:48:33 <Lemon> caps one is ok, idk the tolerance but its alright
04:48:40 <mamalala> depending on how the inductors are made, they can be fairly high resistance, which may confuse the lcr meter's auto mode
04:48:51 <Lemon> thats not wrong yes
04:49:25 <Lemon> cap box is fine
04:49:29 <Lemon> lets retry the 100mH one
04:50:26 <Lemon> labels are so confusing
04:51:17 <Lemon> guess I'll need to rtfm first :>
04:53:56 <rust_collector> haha, did you get a manual with it?
04:55:59 <Lemon> nope :>
04:56:05 <Lemon> but its online I think, someone did a nice tutorial
04:56:09 <rust_collector> what version is it?
04:56:14 <Lemon> ho also mamalala, the fluke reads 9.99978v !
04:56:19 <Lemon> I got the ref today :>
04:56:32 <Lemon> its a XJW01 LCR 3 if im right
04:56:43 <rust_collector> did you let it heat up for 3 days, before testing?
04:56:53 <Lemon> no :> just a rought est
04:56:54 <Lemon> rough test
04:57:03 <mamalala> Lemon: nice! did you let it all run for an hour or so before taking the reading?
04:57:04 <Lemon> the systron is indeed 22/23mv out as I expected
04:57:09 <Lemon> and keithley is bang on !
04:57:17 <Lemon> yeah its running for like 5-6 hours now
04:57:21 <mamalala> ah, ok
04:57:33 <Lemon> im going to make a 18650 pack for it
04:58:16 <mamalala> keep in mind that the fluke has various sample rates to chose from, and filters to use, which will all influence the reading a bit ...
04:58:36 <Lemon> yeah I tried some, its actually quite fast on the max setting !
04:58:48 <Lemon> I wanted a rough estimation anyway, and damn its close to specs !
04:58:52 <mamalala> iirc, the best specs for the fluke are only possible under certain settings of these things ... but then, it's been out of cal for several years now as well
04:58:55 <Lemon> the keithley is bang on too, 10.001v
05:00:39 <Lemon> ho and the lcr meter use like, 80ma ?
05:01:03 <mamalala> depends on how many relays it has engaged, i would guess
05:01:16 <Lemon> yeah, its not power angry
05:01:25 <Lemon> I might make a pack for this one too
05:01:40 <Lemon> im so happy about the lab man
05:04:21 <mamalala> so, the fluke is closest to the specified 10V then, it seems
05:04:42 <mamalala> only 220µV out
05:04:55 <mamalala> vs. 1mV for the keithley
05:09:27 <mamalala> oh, and while the fluke is "fast" even on the slowest setting, it becomes much slower when the filters are enabled :)
05:12:04 <mamalala> also, it is important to look at the specs of the voltage reference as a whole ... at what ambient temp was it calibrated/adjusted, what is the drift per °C, etc...
05:12:33 <mamalala> meaning, unless you recreate the same conditions it was calibrated in, you can expect some deviation
05:12:35 <Lemon> ho yes I know that, I just wanted to do a quick test :P
05:12:52 <mamalala> hehe, i know :)
05:12:53 <Lemon> I'll make a pack for it, and let it powerd on 24/7 in an enclosure
05:12:58 <Lemon> that will be fine enough
05:13:05 <mamalala> just stay away from the volt-nuts forum and such ... haha
05:13:14 <Lemon> thats too late im afraid...
05:13:33 <Lemon> I think I read every topics in the metrology section on the eevblog forum :>
05:16:33 <Lemon> I want to get some resistors/cap standards, but I dont want to spend a ton of money on those, its just to see if my stuff is alright or really out of cal
05:17:13 Quit: Ysjoelfir_B_of_Eng ([email protected]) Quit: Going offline, see ya! (www.adiirc.com)
05:18:39 <Lemon> I love the button labelled 'Don't care' on the scope xd
05:30:48 Join: Ysjoelfir_B_of_Eng ([email protected]) to #EEVblog
05:30:57 <Ysjoelfir_B_of_Eng> re
05:31:08 <Lemon> wb
05:31:46 * rust_collector is sad, and installing windows
05:32:08 <Ysjoelfir_B_of_Eng> :O why is it sad?
05:32:13 <Ysjoelfir_B_of_Eng> did live give you some Lemon?
05:32:17 <rust_collector> I know, self harming is bad, but it makes me feel.
05:32:19 <Ysjoelfir_B_of_Eng> And you forgot to ask for Tequilla?
05:32:46 <rust_collector> At least I am just ruining a not so old laptop, and some time
05:33:37 <rust_collector> it has been a while since I had tequila. And I forget every time I am in THAT store
05:34:22 <rust_collector> which is a bit weird, as I am in that store every damn monday and thursday
05:35:25 <rust_collector> I guess I will put that on my tiny barely sticking out usb stick, that was really cheap
05:39:02 <Ysjoelfir_B_of_Eng> pfff :P
05:39:42 <rust_collector> I miss having usb3 on this machine, when I do this stuff
05:58:25 <rust_collector> bah
05:59:19 <rust_collector> odin has shown his mercy, and makes the laptop not boot from the winders installer. good times!
05:59:35 <rust_collector> So, Now I still have that useless laptop
06:06:34 <Ysjoelfir_B_of_Eng> XD
06:06:42 <Ysjoelfir_B_of_Eng> Hail odin!
06:07:00 <Lemon> ha that reminds me that I have to clean a desktop that im selling
06:07:00 <rust_collector> right
06:07:13 <rust_collector> you are selling a laptop
06:07:23 <Lemon> and a desktop
06:07:52 <rust_collector> mmkay then
06:09:29 <rust_collector> i really do not like the way modern computers are so difficult to boot from the wrong thing
06:10:34 <Ysjoelfir_B_of_Eng> maybe you want to sell the desktop to rustys kid nr. 3
06:12:18 <Lemon> well you know its not a lightinning fast boi
06:12:23 <rust_collector> Well, he has not mentioned it since it was picked up the last time. It either works, or... maybe he became a buddhist or something
06:12:34 <Lemon> it runs with a dual core thats old, 4gb ram, random gpu
06:12:53 <rust_collector> and it was kid #1, #3 bought her own lenovo something thing
06:15:37 <Ysjoelfir_B_of_Eng> oh ok :D
06:16:52 <Lemon> I wonder if better kelvin clips would improve accuracy by a significant amount
06:17:38 <Ysjoelfir_B_of_Eng> define better
06:17:59 <Lemon> on the lcr meter
06:18:03 <Lemon> ha
06:18:11 <Ysjoelfir_B_of_Eng> i assumed that^^ but what is better?
06:18:12 <Lemon> hmm like, something I could notice :>
06:18:33 <Lemon> something worth of making that upgrade id say
06:18:35 <Ysjoelfir_B_of_Eng> it all depends on how detailed you look :)
06:18:37 <Lemon> not 0.0000001% better
06:18:58 <Ysjoelfir_B_of_Eng> well... I am pretty satisfied with the DIY kelvin clips I showed you :) and they are basically crap
06:19:10 <rust_collector> just stop, use the damn thing for something
06:20:11 * Ysjoelfir_B_of_Eng stops and uses Lemon for something
06:20:35 <Lemon> ho yeh I'll use this one a lot trust me
06:20:49 <Lemon> I was just wondering if better leads would change anything or not
06:20:57 <rust_collector> sure it will
06:21:03 <Lemon> those that came are cheapos but somewhat good, I dont have much comparison
06:21:24 <rust_collector> they will probably have a slightly different colour, to start with
06:22:00 <rust_collector> I am all for good leads, but....
06:22:23 <Lemon> ho honestly it was a question, I dont plan on getting new ones
06:22:30 <Lemon> I think I read it somewhere
06:22:33 <Lemon> thats why I was asking
06:23:50 <rust_collector> the ones you have are probably pretty crap. get some gold plated ones, so they stay sort of ok over time
06:24:03 <Lemon> yeah I'll see
06:28:11 <Lemon> the rigol scope is so small in real life
06:28:20 <Lemon> I finally saw one at mamalala's place :>
06:28:35 <Lemon> its like what, 10cm deep ?
06:29:11 <rust_collector> yeah, That is the thing I do not like about the old ones, you almost have to poke them thru the wall
06:29:34 <Lemon> haha yeah, big bois !
06:34:45 <Lemon> im really happy about the state of my lab
06:35:58 <rust_collector> I am making pretend shepherds pie.... just saying
06:40:16 <Ampera> rust_collector: what's pretend about it
06:48:01 <rust_collector> well, it just mashed potatoes, and mince meat, and some frozen veg cubes, oh, and cheese
06:49:48 <Ysjoelfir_B_of_Eng> and corn an pizza crust?
06:50:07 <Lemon> one day, one of those or similar will be mine https://www.ebay.com/itm/Keithley-616-Digital-Electrometer-Good-working/402047355109?hash=item5d9be3c8e5:g:hGcAAOSwGC9eKJ8x
06:51:52 <rust_collector> corn, yes. I did not want to say that
06:52:08 <rust_collector> tell your female I am sorry
06:55:56 <Lemon> https://www.ebay.com/itm/Keithley-619-Programmable-Electrometer/223913209532?hash=item3422446ebc:g:35IAAOSwl7dcTpYx
06:56:01 <Lemon> the price is quite nice on this one
06:57:20 <rust_collector> yeah, and shipping almost makes sense for once
06:57:30 <Lemon> yeah its a big one
06:58:02 <Lemon> I think it measures down to 10 femto amps
06:58:23 <Lemon> and up to 2 Tohms
06:58:25 <rust_collector> it is annoying when you find something neat in the states, and it is $20, and you have to pay $120 for shipping
06:58:26 <Lemon> meh
06:58:40 <Lemon> yeah usually I dont look on ebay us
06:59:33 Join: CF ([email protected]) to #EEVblog
07:00:01 <Lemon> hey CF waddup
07:00:15 <rust_collector> hawaii, you are getting good value for your shipping there
07:00:28 <Lemon> https://www.ebay.com/itm/Keithley-617-Programmable-Electrometer/232031246335?hash=item360623d7ff:g:cfAAAOSwbsBXmxkf
07:00:31 <Lemon> tis one
07:00:40 <CF> is the µWatch calculator still alive?
07:00:41 <Lemon> I think it goes down to like, 100 atto-amps
07:05:29 <Ysjoelfir_B_of_Eng> Hi CF
07:05:36 <Lemon> wow the keithley 6430 can go down to 1 attoamp
07:05:56 <rust_collector> ok, that sounds very useful
07:06:22 <Lemon> you can determine if someone is farting without making noise in the next room for example
07:06:46 <Lemon> 200Tohm input impedance
07:07:18 <Ysjoelfir_B_of_Eng> hey, I have a 200TR resistor!
07:07:29 <Lemon> really ? :O
07:07:49 <Ysjoelfir_B_of_Eng> yeah. like that one https://www.nostalux.de/Betonblock-rund-groß.html
07:08:16 <Lemon> lol :> saw it coming !
07:08:18 <rust_collector> those are neat
07:08:24 <rust_collector> very stable too
07:08:39 <Ysjoelfir_B_of_Eng> just sadly pretty sensitive to moisture :D
07:10:27 <rust_collector> I see those used to isolate big metal antennas, like the ones they use for the 5g blasters
07:10:42 <rust_collector> so I guess they are good enough
07:10:48 <Ysjoelfir_B_of_Eng> I got an antenna from mamalala... now I must find a way to mount that on the balcony
07:10:55 <Lemon> hey Ysjoelfir, do you think I'll benefit from using batteries with the lcr meter ? instead of a regular power brick
07:11:13 <Ysjoelfir_B_of_Eng> I don't think so, It'll be good enough
07:11:26 <Ysjoelfir_B_of_Eng> despite the improved handiness while using batteries
07:11:40 <Lemon> I know the previous model came with a battery holder
07:15:26 <Lemon> tommorow I'll select and make two packs, one for the lcr meter and one for the Vref
07:16:04 <Lemon> my objective for when I'll sell the laptop, is to get some resistance/capacitance/inductance references, to see how accurate my stuff is, but I want them cheap
07:16:17 <Lemon> an electrometer too
07:24:29 <rust_collector> you do know you will have to move those stairs sooner or later, right?
07:25:22 <Lemon> yeah im afraid of that
07:25:45 <Lemon> but behind me theres some space, I should be able to fit some stuff in there
07:25:46 <rust_collector> don't worry, just ask your carpenter buddy
07:25:50 <Lemon> right now its my component space
07:28:03 <Lemon> getting the 18ghz plugin for the hp counter would be anice thing too
07:28:08 <rust_collector> I wonder if there in an online community for people into electronics that do not care about presicion at all
07:28:27 <Lemon> my father didnt care at all about precision honestly
07:28:54 <rust_collector> as long as it is within 5v or so, and works...
07:52:37 Quit: CF ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
07:53:06 <steve30> hi
07:53:48 Join: CF ([email protected]) to #EEVblog
07:53:58 <Lemon> hi steve
07:54:01 <Lemon> how u doin
07:54:15 <MrMobodies> Hello
07:54:18 <MrMobodies> oh
07:54:24 <steve30> i just woke up
07:54:34 <rust_collector> great timing!
07:54:39 <MrMobodies> I think I am getting over the indigestion
07:55:09 <Ampera> MrMobodies, so you're not dying?
07:55:15 <MrMobodies> nope
07:55:18 <Ampera> aw
07:55:20 <Ampera> er, good
07:55:28 <MrMobodies> instead I was trying
07:55:40 <MrMobodies> oh trying not to die
07:56:27 <MrMobodies> No longer bloated, I can breathe normally and plenty of hot water
07:57:11 <MrMobodies> I found this on Ebay and i thought it looked hilarious
07:57:23 <MrMobodies> https://www.ebay.co.uk/itm/173808241588?hash=item2877c74bb4:g:~AUAAOSwFMZWqgQq
07:57:37 <MrMobodies> They put the fan over some flowers
07:57:47 <MrMobodies> a vase of flowersa
07:57:59 <rust_collector> that is nice
07:58:45 <MrMobodies> it does look nice on display
08:00:03 <MrMobodies> I am trying imaging what over components would like nice on a flower display
08:00:44 <rust_collector> get a crawly sort of plant, and sprinkle stuff on it?
08:01:33 <MrMobodies> the fan will do it for them if they power it up
08:02:09 <MrMobodies> The fans on one of my switches are failing with one stopped
08:02:29 <MrMobodies> It was on a Netgear GS748v4 and I found the exact ones
08:02:30 <MrMobodies> https://www.ebay.co.uk/itm//283287562227
08:02:50 <MrMobodies> I was trying to get similar but I could find anything near other than some 2 pin stuff
08:03:21 <MrMobodies> I spent some nights looking through the data sheets for alternatives
08:03:34 <Lemon> on my fluke, the 1v scale can go up to 2.5v, with 1micro volt resolution. that means its a 2.5 million count dmm ?
08:03:41 <MrMobodies> So I think that will take a couple of weeks to arrive
08:05:05 <MrMobodies> https://bkprecision.desk.com/customer/portal/articles/1535307-difference-between-counts-and-digits
08:05:13 <MrMobodies> It sounds good in microvolts
08:07:15 <Lemon> yeah ive read it, I was just wondering as the number of count is different in each range
08:09:04 <MrMobodies> oh thanks Ampera for wondering that I am live and well.
08:09:14 <Ampera> lol
08:11:22 <MrMobodies> I am waiting for the rain to stop so I can burn some things including some wood
08:11:22 * steve30 wonders what food to have
08:11:29 <MrMobodies> I got the Acetone for it
08:11:51 <MrMobodies> 5l of that and some alcohol arrived and very handy
08:11:53 <rust_collector> what did acetone do to you?
08:12:35 <MrMobodies> well it ruined some things in the past
08:12:48 <MrMobodies> melted the plastic when I accidentally spilled it
08:12:53 <MrMobodies> and dried my skin
08:12:59 <rust_collector> so now you will burn it? that is not very nice and forgiving
08:13:20 <MrMobodies> well petrol they say stinks
08:13:25 <MrMobodies> this don't seem to have any order
08:13:29 <MrMobodies> and smell
08:14:05 <MrMobodies> it heats the wood up quicker and dries the rest before they go up too
08:14:42 <rust_collector> I like petrol stink
08:14:51 <MrMobodies> well my neighbour uses that
08:15:04 <MrMobodies> and he said he often gets notices from the council when he has a big one
08:15:29 <MrMobodies> I do mine in the night
08:15:48 <MrMobodies> don't want the neighbours getting upset
08:16:32 <rust_collector> great, now they can see the embers flying
08:16:52 <MrMobodies> well the conifers take care of that
08:16:58 <MrMobodies> but they may here loud crackling
08:17:04 <MrMobodies> I threw a lithium polymer battery, closed the lid and it sounded like a little firework.
08:17:10 <rust_collector> We are not allowed to burn stuff here any more
08:17:16 <MrMobodies> oh
08:17:23 <rust_collector> Ooh, old lightbulbs pop nicely too
08:17:55 <rust_collector> well, good night, I have to get up in 4 hours
08:17:59 <MrMobodies> not allowed burn stuff not even in a
08:18:00 <MrMobodies> oh
08:18:06 <MrMobodies> nighy
08:18:08 <rust_collector> have fun etc.
08:18:32 <rust_collector> not even. if you are a farmer, you can, some times
08:18:45 <MrMobodies> but in alog burner
08:18:57 <MrMobodies> they have a few of them around this village and the one in the pub
08:19:28 <rust_collector> if you use it to heat the house or something, yes. but not just to get rid of junk
08:20:33 <MrMobodies> like plastics
08:20:43 <MrMobodies> I know I am not allowed to burn those
08:21:55 <Lemon> alright peeps time to sleep
08:22:00 <Lemon> see you tommorow for new adventures !
08:22:21 <MrMobodies> nighty
08:23:50 <Lemon> ho and btw I found a really nice offer for who is interested https://www.ebay.fr/itm/Tektronix-Scopemeter-THS-720A-2-Kanal-100MHz-500MS-s/174202230666?hash=item288f43178a:g:y70AAOSwUAVeVXbg
08:24:23 <Lemon> those go for easily 6-700 euros
08:27:21 <MrMobodies> that looks really nice
08:27:37 <Lemon> I got the 60mhz version, its a nice tool indeed
08:27:43 <Lemon> mine is out of cal on the dmm part
08:27:47 <MrMobodies> one downside... rubber buttons with print
08:27:58 <Lemon> ho they seems to old well
08:28:10 <Lemon> my father used it for a long time and it stills looks like new
08:28:15 <Lemon> alright now I sleep
08:28:17 <MrMobodies> that one in the
08:28:19 <Lemon> bye peeps !
08:28:20 <MrMobodies> ok
08:29:04 Quit: Lemon ([email protected]) Connection closed
08:29:19 Quit: CF ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
08:30:43 <MrMobodies> well that that foam casing looks well designed
09:44:18 Quit: Ysjoelfir_B_of_Eng ([email protected]) Quit: Going offline, see ya! (www.adiirc.com)
10:02:52 Join: a5ync ([email protected]) to #EEVblog
10:04:35 <a5ync> hi guys and gals
10:23:08 Quit: a5ync ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
10:53:08 <EEVBlog> New EEVBlog Tweet: Wow, Youtube MCN's still exist, how uselessly quaint! https://t.co/X8qDKbdFGM
12:41:57 <EEVBlog> New EEVBlog Retweet: Richard Stephenson: It's nice to slow the pace down every now and again. I'm currently supporting both @NASAVoyager spacecraft, VGR1 at Goldstone, VGR2 at Canberra. A combined flight time of almost 85 years. Its like driving Miss Daisy... x 2. https://t.co/vkIZcSCrLG
13:19:28 Topic Is: Official IRC channel of the EEVblog - www.eevblog.tv
13:19:28 Set By: (ChanOP) on: Fri Jan 24 20:18:35 2020
16:12:23 Quit: qeed ([email protected]) Client exited
16:23:28 Join: HarryFormalllyKnownAsPrince ([email protected]) to #EEVblog
16:30:01 Quit: HarryFormalllyKnownAsPrince ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
16:39:27 Join: qeed ([email protected]) to #EEVblog
16:55:41 <EEVBlog> New EEVBlog Tweet: That dumpster NAS drive is repaired! Video coming of course. https://t.co/T1QrAUL0xn
17:11:14 Join: hsn ([email protected]) to #EEVblog
17:16:07 <hsn> hhey
17:18:04 <steve30> hi
17:19:38 Join: hsn93 ([email protected]) to #EEVblog
17:20:24 Join: hsn993 ([email protected]) to #EEVblog
17:20:55 <hsn993> as the ear is less sensitive to low audio frequencies. It is employed by arithmetically adding a table of values
17:21:32 <hsn993> however, the (A-weighting) in low frequencies has negative dB gain !!!??
17:22:16 Quit: hsn ([email protected]) Ping timeout: 121 seconds
17:22:16 <T3sl4> "negative dB gain" == "less sensitive" :P
17:22:41 <hsn993> ah so (A-wighting) is not to (make human hear)
17:22:48 <hsn993> its to simulate human ear?
17:23:35 <T3sl4> you want to subtract A-weight to compensate
17:23:44 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
17:24:02 <steve30> I can't help but feel my recent gaming experience would have been better with a CRT monitor :D
17:24:36 * T3sl4 hugs steve30 with an electron beam and magnet
17:27:19 <hsn993> so we can say (ear has band pass filter) and if we want to graph its gain .. it will be (A-weighting)
17:27:57 <T3sl4> yes
17:28:47 <hsn993> but to other animals that has higher sensitive in low frequencies .. we know that the actual noise was worse than the sound .. but we never care
17:29:07 <hsn993> or we have other (animal-weighting) !
17:29:33 <T3sl4> indeed
17:33:04 <hsn993> cool thanks for the info <3
17:38:57 <EEVBlog> New EEVBlog Tweet: Wow, South Korea is turning into a nightmare real quick.
17:41:13 * steve30 curls up on T3sl4's desk
17:41:56 * T3sl4 sets a nice warm power supply beside steve30
17:42:15 <steve30> *purr*
17:44:02 <steve30> I think I'll put some food on in a bit
17:46:38 <steve30> meanwhile I'll record a new minidisc
17:51:32 <steve30> I think the minidisc sounds better when recorded through TOSlink (instead of analogue)
17:59:51 <hsn993> lol the title should be (understanding)
17:59:52 <hsn993> https://snipboard.io/cVwUmt.jpg
18:00:50 <hsn993> typo missed 50% of the word xD
18:01:58 <DHess_US> Oh God, Mike Less is spoofing Bloomberg. https://www.youtube.com/watch?v=W39mfucOWjs
18:16:56 <T3sl4> DHess_US: so it's okay to rip on republicans wearing blue bandanas, but not red ones?
18:17:44 <DHess_US> I'm not sure what that means.
18:18:33 <T3sl4> DHess_US: you identify as conservative, i guess?
18:18:58 <DHess_US> Nope, a pox on both of their houses.
18:19:10 <T3sl4> oh
18:19:17 <T3sl4> what's "other" to a "conservative"?
18:19:49 <DHess_US> It doesn't matter when there are two choices and neither represents you.
18:20:15 <T3sl4> that's not an answer...
18:20:21 <T3sl4> shall i guess, establishment dem vs rep?
18:20:36 <DHess_US> I don't know what you mean by that.
18:20:46 <T3sl4> neocons, the lot of them
18:20:53 <T3sl4> or neolibs, same thing
18:30:08 <hsn993> r u right-wing or left-wing T3sl4
18:30:40 <T3sl4> left of center i suppose, not that that's hard to do in this damn country
18:31:11 Quit: PsySc0rpi0n ([email protected]) Quit: leaving
18:32:56 <T3sl4> but the better question is authoritarian vs democratic
18:34:41 <hsn993> mix and match
18:34:42 <hsn993> :P
18:36:55 <DHess_US> Most people would consider me a Libertarian if anything.
18:40:23 <T3sl4> but is that the "leave me alone" libertarian, or the "we need to work together to responsibly manage shared resources" libertarian
18:41:34 <T3sl4> cuz the former is libertarian-in-name-only "tea partyers", and now, alt-right
18:42:26 <EEVBlog> New EEVBlog Tweet: Is there a YouTube gold award at the end? https://t.co/PZOYJbRh3e
18:45:54 <DHess_US> Ask the people who consider me that. They don't agree about what a Libertarian is and the LIbertarians don't either.
18:46:46 Join: PsySc0rpi0n ([email protected]) to #EEVblog
18:48:55 <T3sl4> heh, true
18:49:14 <T3sl4> -isms always rather bothered me, anyway
18:49:17 <T3sl4> so what do you like?
18:49:43 <DHess_US> huh? Issues?
18:51:17 <T3sl4> in government, or the lack thereof, i suppose
18:51:52 <DHess_US> Pro 2nd amendment, pro choice, anti Iraqi war, anti Wickard vs Filburn, anti civil assets forfeiture, anti drug war
18:52:07 <DHess_US> That is 5 marks against either party.
18:52:32 <DHess_US> Oh, and pro encryption, so six mark now.
18:53:18 Join: ThunderSqueak ([email protected]) to #EEVblog
18:53:18 Mode: (by ChanOP) +o ThunderSqueak
18:54:08 <DHess_US> pro Drexal Furniture, so seven marks against either
18:54:38 <T3sl4> a lot of civil rights groups are in favor of those things
18:54:56 <DHess_US> But neither political party is.
18:55:02 <T3sl4> not a lot of candidates being endorsed by those groups
18:55:10 <DHess_US> And the ACLU is anti-gun
18:55:58 <DHess_US> You might think that is minor, but it was a requirement when it was founded and it undermines all civil rights.
18:56:34 <T3sl4> dr king was pro gun
18:57:00 <hsn993> https://snipboard.io/69yguL.jpg <-- me puting food for my co-worker
18:57:03 <DHess_US> He was, and good.
18:57:23 <DHess_US> But Reagan and Bush were not.
18:58:53 <hsn993> https://snipboard.io/vCWu4a.jpg <-- while ago wanted to share this in airplane seat tv
19:04:42 <DHess_US> http://capnaux.com/wp-content/uploads/2013/04/url.jpeg
19:07:52 <hsn993> lol
19:09:48 <hsn993> https://snipboard.io/qTpLi7.jpg
19:19:26 <hsn993> guys .. is there online free lancing jobs platform for electronics engineers (beginners) who want to boost their skills ?
19:21:27 Join: Ysjoelfir ([email protected]) to #EEVblog
19:26:15 <Ysjoelfir> hello
19:29:28 <hsn993> i checked (upwork.com)>> https://www.upwork.com/hire/electrical-engineers/ .. but i dont if it works well .. im afraid to take jobs that i dont know how to estimate timeline provided that the goal is to learn (i cant take super simple jobs)..
19:29:35 <hsn993> hello Ysjoelfir
19:29:36 <EEVBlog> Hello there, hsn993!
19:30:28 <Ysjoelfir> Interesting website, didn't know about that yet :)
19:32:30 <hsn993> there is other one ill share with u
19:34:32 <hsn993> https://www.freelancer.com/jobs/circuit-design_electronics_electronic-design/
19:35:47 <Ysjoelfir> nice, thanks :)
19:55:23 <hsn993> https://www.sonnetsoftware.com/products/lite/ << looks pretty
19:59:21 <Ysjoelfir> durchaus
19:59:28 <Ysjoelfir> erm
19:59:30 <Ysjoelfir> indeed!
19:59:50 * Ysjoelfir needs to remember to switch his head to english when being in the eevblog channel
20:01:58 <K> hello
20:02:37 <Ysjoelfir> Hi K
20:07:39 <hsn993> https://www.ebay.com/itm/HP-Agilent-Keysight-8560E-Spectrum-Analyzer-30Hz-2-9GHz-w-warranty-O1-4DD/254518708631?epid=1108062238&hash=item3b427f4997%3Ag%3AuD8AAOSwnRZeTwbE&LH_Auction=1 << price ?
20:07:50 <hsn993> is it good ?
20:08:38 <Ysjoelfir> woah! i want
20:08:52 <Ysjoelfir> thats cheap
20:09:08 <Ysjoelfir> at least over here in germania. you would pay over 1k€ I assume
20:11:27 Join: T3sl41 ([email protected]) to #EEVblog
20:11:38 Mode: (by ChanOP) +o T3sl41
20:11:59 <Ysjoelfir> Hi T3sl4
20:14:02 Quit: T3sl4 ([email protected]) Ping timeout: 121 seconds
20:14:14 Nick: T3sl41 is now known as T3sl4
20:14:22 <T3sl4> just rebooting the router
20:14:30 Quit: T3sl4 ([email protected]) Changing hosts
20:14:30 Join: T3sl4 ([email protected]) to #EEVblog
20:14:30 Mode: (by lego.jp.austnet.org) +o T3sl4
20:18:43 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
20:21:10 Join: Lord_of_nothing ([email protected]) to #EEVblog
20:23:50 <hsn993> in arabia this does'nt exist
20:25:32 Quit: ThunderSqueak ([email protected]) Quit: Leaving
20:27:11 <Halcyon> Evening all
20:28:30 <steve30> hi Halcyon
20:31:33 <hsn993> hello Halcyon
20:33:45 <Halcyon> I just won x2 12MB Voodoo2 cards on ebay :D
20:34:03 <Halcyon> Identical too, so I can FINALLY SLI them! I have been waiting for this day
20:34:49 <steve30> cool
20:35:22 <Halcyon> I now have 4 of those cards :D
20:35:27 <Halcyon> Probably should sell one or two
20:37:58 <steve30> I need to go out in a few hours. Fortunately we have sunshine today :D
20:38:43 <Halcyon> YAY!
20:58:06 <steve30> Halcyon, why is it so difficult to get hot boys to go out for coffee? :/
21:06:17 <Halcyon> Because guys are cunts?
21:11:09 <Halcyon> Who would be coconuts enough not to go on a date with you?
21:11:11 <Halcyon> You are lovely
21:13:56 <steve30> aww
21:23:29 <Ysjoelfir> Hi Halcyon and steve30 :)
21:25:30 <Halcyon> Hey Ysjoelfir
21:25:33 <Halcyon> What's doing?
21:26:14 <Ysjoelfir> Writing a report of specifications for a resistor and in general being happy about finaly being done with studying.
21:26:49 <Halcyon> :)
21:27:19 <Ysjoelfir> How about you?
21:27:23 <Halcyon> I'm doing two subjects at the moment. Reverse Engineering Malware (it's mostly assembly language) and Sat. Comms.
21:27:27 <Halcyon> So yeh, fun :)
21:27:37 <Ysjoelfir> for work, or for fun?
21:27:41 <Halcyon> Both
21:28:04 <Ysjoelfir> Working an having fun sounds familiar.
21:28:21 <Halcyon> Except today I called one of my bosses a fuckwit
21:28:24 <Halcyon> He deserved it
21:28:51 <Ysjoelfir> XD I want to do that regularely. but tell me more, why did he deserve it?
21:29:03 <Halcyon> Oh it's a long story and you had to be there
21:29:14 <Halcyon> Point is, I'm sworn, he is unsworn. There is bugger all he can do
21:29:28 <Halcyon> I directly report to a Sergeant, he is just an over-paid admin person
21:32:09 * steve30 meows at Halcyon
21:32:16 * Halcyon pets the kitty
21:32:33 <steve30> :)
21:33:48 <Ysjoelfir> thats even better if he can't do anything about it :D
21:34:07 * Ysjoelfir pets steve30s butt
21:34:16 <Ysjoelfir> Kittys like that. At least mine do.
21:34:23 <Halcyon> It wasn't unjustified, so yeh he has nothing
21:44:05 <hsn993> which malware are RE
21:44:10 <hsn993> are u RE
21:44:16 <hsn993> Halcyon ^
21:44:24 <hsn993> or its private
21:44:24 <Ysjoelfir> Halcyon is a very baaaad malware!
21:44:25 <Halcyon> Nothing in particular (at the moment)
21:44:37 <Halcyon> It's more about learning how to do it better
21:44:57 <Halcyon> Nah it's unclassified so I can talk about it
21:45:28 <Halcyon> Basically I'm learning how to reverse engineer assembly code, so executable binaries etc...
21:45:57 <hsn993> IDA pro ?
21:46:04 <Halcyon> Yep
21:46:12 <hsn993> cool stuff ha
21:46:15 <Halcyon> And a few Linux tools
21:46:32 <Halcyon> IDA does a great job though
21:46:52 <hsn993> ghidra is one popular by NSA i think
21:47:25 <Halcyon> They are all more or less the same
21:48:04 <Halcyon> IDA makes visualising loops really easy
21:48:25 <Halcyon> We've been doing a bit of work on obfuscating code as well
21:48:36 <hsn993> from what i hear from someone i consider as expert (im not so tech in the field) .. that IDA pro is on different level
21:48:38 <Halcyon> Or more to the point, un-obfuscating code
21:49:05 <Halcyon> IDA definitely is quite powerful and does a lot of the hard work for you
21:49:10 <Halcyon> It's a great visual tool
21:50:09 <hsn993> i use task manager and virustotal thats my level :P
21:50:17 <Halcyon> Heh
21:50:26 <Halcyon> I am not a programmer at all, software isn't my thing
21:50:31 <Halcyon> I'm more about hardware hacking
21:50:38 <hsn993> olydbg for simple if condition type softwares
21:52:58 <hsn993> well yeah im neither hardware or software :(
21:54:15 <Ysjoelfir> Hardware! Hardware! Hardware!
21:54:18 * Ysjoelfir cheers
21:54:45 <Halcyon> :)
21:54:51 <Halcyon> Hardware is so much easier
21:54:54 <Halcyon> Plus fun
21:57:25 <Halcyon> steve30: https://www.youtube.com/watch?v=NOpS4qGILyY
21:59:46 Join: hsn ([email protected]) to #EEVblog
22:01:16 Quit: hsn993 ([email protected]) Ping timeout: 121 seconds
22:02:18 <hsn> that phone is sexy https://youtu.be/9s1sJRO7rwU?t=936
22:03:15 <steve30> hehe
22:03:34 <Halcyon> hsn: Why not use LBRY ?
22:03:35 <Halcyon> :P
22:03:43 <Halcyon> Supporting Youtube *hiss*
22:08:05 <Ysjoelfir> I actually registered at libry and transfered my channel there.
22:08:08 Join: hsn93 ([email protected]) to #EEVblog
22:08:12 <hsn93> wth with this wifi
22:08:25 <Ysjoelfir> should start making videos again, It was actually pretty fun stuff.
22:08:37 <hsn93> i dont know .. the AI of youtube busted me
22:08:43 <Ysjoelfir> not sure why I stopped uploading. I guess because of the depressions were stron in that time?
22:10:20 Join: Lemon ([email protected]) to #EEVblog
22:10:28 <Lemon> hello bois
22:10:28 <EEVBlog> Hello there, Lemon!
22:10:46 Quit: hsn ([email protected]) Ping timeout: 121 seconds
22:10:47 <hsn93> hello lemon
22:10:54 <Ysjoelfir> hello lemon
22:10:54 <EEVBlog> Hello there, Ysjoelfir!
22:11:01 <hsn93> this EEVBlog is racist .
22:11:14 <hsn93> eevblog bot
22:11:21 <Ysjoelfir> it's been programmed by a half kraut, what do you expect? :P
22:12:28 <Halcyon> eevblog status
22:12:28 <EEVBlog> Latest EEVBlog Tweet: Is there a YouTube gold award at the end? https://t.co/PZOYJbRh3e
22:12:53 <Halcyon> eevblog time
22:12:54 <EEVBlog> Ah shoot, Doc! We've ended up at 22:12 Sydney time.
22:12:56 <Halcyon> eevblog help
22:14:42 <Halcyon> https://www.youtube.com/watch?v=X6DRJH2uys0
22:14:43 <Lemon> hows everyone going ?
22:14:45 <Halcyon> Nawww so cute
22:15:08 <Ysjoelfir> thats cute, what is that? :D
22:15:15 <Halcyon> A dsog
22:15:16 <Halcyon> dog
22:15:21 <Ysjoelfir> quite good lemon. you? did your desk crash already?^^
22:15:22 <Halcyon> :P
22:15:28 <Ysjoelfir> I meant the other thing there, halcyon :D
22:15:36 <Halcyon> *smirk* It's a wombat
22:15:37 <Ysjoelfir> the smaller one
22:15:42 <Ysjoelfir> dafuk is a wombat
22:15:48 <Halcyon> https://en.wikipedia.org/wiki/Wombat
22:15:55 <Lemon> deck is doing good, thanks for him :P
22:16:02 <Lemon> desk
22:16:06 <Halcyon> A chunky furry thing
22:16:10 <Ysjoelfir> thats cute as fuck :D
22:16:20 <Lemon> ho yeah wombats
22:16:25 <Lemon> magnificient bastards
22:16:53 <Halcyon> https://www.youtube.com/watch?v=-ojD6qFs85Y
22:16:56 <Ysjoelfir> wow, I just learned that wombats poop cubes. I feel so enlightened now
22:17:57 <Halcyon> Yep
22:20:24 <Halcyon> Anyway, bed time for me, goodnight all
22:23:30 <hsn93> gn halcyon
22:23:31 <hsn93> have fun
22:23:35 <Ysjoelfir> have a good long nap
22:26:32 <Lemon> im wondering something
22:26:43 <Lemon> you know on those lipo batteries, theres a balance connector
22:26:53 <Lemon> which is basically a few wires going dirrectly to cells
22:27:01 <Lemon> I want to make the same thing with 18650
22:27:05 <Lemon> instead of buying a bms
22:27:14 <Lemon> as theres none in parallel
22:27:33 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
22:27:45 <Ysjoelfir> sounds not uncommon right now
22:28:02 <Lemon> I mean, I don't see why it shouldnt work
22:28:23 <Ysjoelfir> what are you wondering exactly?
22:28:32 <Ysjoelfir> (hurry up, in 2 min is lunch!)
22:28:35 <Lemon> if my idea is correct
22:28:36 <Lemon> :>
22:28:42 <Lemon> or if I forgot anything
22:29:07 <Lemon> I have many 18650, and a nice lipo/lion charger
22:29:46 <Ysjoelfir> so you're just wondering if there is anything more than that wire to the cell in a pack? no, it's exactly that.
22:29:53 <Ysjoelfir> lunchtime! <3
22:29:54 <Lemon> yes
22:29:59 <Lemon> ok perfect :> have a good meal !
22:30:05 <Lemon> im going too, lets eat some soup
22:30:25 <Ysjoelfir> I opted again for an asian dish from the freezer. I'm wondering if it is good this time
22:31:25 <Lemon> take care :>
22:40:01 Join: hsn ([email protected]) to #EEVblog
22:40:21 <hsn> https://electronics.stackexchange.com/questions/483260/using-dot-in-capacitance-values << '^_^
22:43:35 Quit: steve30 ([email protected]) Quit: <Baljem> steve30: by the way, I had the most bizarre dream the other day that someone came in here and seriously flipped their shit over your quit message and why aren't the ops /doing/ something about it
22:46:20 <hsn> /quitmsg 'joined'
23:15:32 <T3sl4> yikes
23:15:55 <T3sl4> hsn: brit standard i believe uses the multiplier as placeholder
23:16:09 <T3sl4> rest of the world uses . (english) or , (continental eu?)
23:17:24 <hsn> i wonder does the question has actual meaning/goal/or benifit ..
23:19:26 <T3sl4> that is the full extent of it
23:19:35 * Ampera sneezes at T3sl4
23:19:41 <T3sl4> if you're drawing for BS stds, use letters
23:19:47 * T3sl4 inhales Ampera
23:20:00 <T3sl4> if you're drawing for your locale, use your locale decimal
23:20:22 <T3sl4> beware when formatting/syntax matters, e.g. SPICE might not accept , i'm not sure
23:21:00 <Ampera> sounds
23:21:02 <Ampera> SPICEy
23:21:06 <Lemon> ok I selected 7 cells that are close in voltage, 3 for the lcr meter and 4 for the Vref
23:22:01 * T3sl4 inverts Ampera's matrix
23:22:04 <Lemon> I wonder if I really need to balance them, for only 3 or 4 in series
23:22:37 * T3sl4 solves Ampera's inverted matrix
23:22:46 * T3sl4 crashes, "divide by zero error"
23:23:39 * Ampera inverts the zero
23:24:46 <T3sl4> oh noes!
23:25:04 <T3sl4> on the upside, it turns out you're a singular person, Ampera
23:25:28 <T3sl4> (the linear algebra equivalent to "division by zero" is "singular matrix")
23:25:39 <T3sl4> i hope you take linear alg some time, it's pretty good stuff :)
23:25:44 <Ampera> once math got to matrices I was out
23:25:52 <hsn> i know span only :)
23:26:08 <hsn> [1 0] [0 1] linear independant ?
23:26:27 <Ampera> I dropped out of college, so chances are I might never take it
23:26:28 * T3sl4 nods
23:26:38 <T3sl4> Ampera: https://i.kym-cdn.com/photos/images/newsfeed/001/468/202/b02.jpg geeeeeeeet vectored on
23:26:42 <hsn> somthing like that (not good idea to study linear algebra before sleep)
23:27:08 * Ampera scales T3sl4 down to the size of a less annoying version of himself
23:27:17 <T3sl4> unpossible
23:28:00 <Ampera> is it bad that the only thing that's upsetting me about COVID-19 is that I can no longer buy certain things from china?
23:28:23 <Ampera> I really had my heart set on the pinebook pro, but it might be months before they're even able to make any more of them
23:28:27 <hsn> what u cant buy
23:28:28 <Lemon> anyone got experiences with 18650 packs ?
23:28:55 <T3sl4> Lemon: making acampfire?
23:29:12 <hsn> arent these used heavily in electronics hookah
23:29:26 <T3sl4> vape pens often use em yea
23:29:42 <Lemon> hehe no I got like 52 almost new nice 3ah samsung cells, and dozens of other so I want to make a few packs for some stuff
23:29:46 <Lemon> like a Vref, and a lcr meter
23:30:01 <Lemon> I used them in an ebike battery, but I use lipos
23:30:05 <Lemon> so I have those laying around
23:30:14 <Lemon> and I was wondering : as im just using either 3 or 4 in series
23:30:18 <Lemon> do I really need to balance them ?
23:30:23 <T3sl4> does the meter even fit an applicable number of 18650s?
23:30:25 <Lemon> or they'll be fine
23:30:30 <Lemon> ho it will be external
23:30:36 <Lemon> it runs on 12v
23:30:41 <T3sl4> so, 3 in series?
23:30:44 <Lemon> yeah
23:30:46 <T3sl4> maybe 4 with a reg
23:31:30 <T3sl4> just use a BMS that disables output if any one cell drops below safe minimum (~3V)
23:31:50 <Lemon> the thing is
23:31:51 * Ampera drops T3sl4 below a safe minimum
23:32:00 <Lemon> I wanted to know if I could avoid using a bms, for such a simple pack
23:32:03 <T3sl4> drop me like i'm hot, baby
23:32:06 <Lemon> I can monitor them myself
23:32:10 <Ampera> but you're not
23:32:10 <Lemon> and I do have a nice charger
23:32:15 <T3sl4> :(
23:32:17 <Ampera> you're actually quite plain T3sl4
23:32:27 <T3sl4> ha, that was my plain all along!
23:32:51 <T3sl4> Lemon: for discharge only, that's basically all you need in a BMS, a couple comparators
23:33:14 <Lemon> I matched them at 1/2mv from each others
23:33:16 <T3sl4> may find it worth getting the integrated version for charge as well, since balancing is a good idea there
23:33:25 <Lemon> I think they should be fine as theres none in parallel
23:33:42 <Lemon> well I'll run a few tests and see if I really need a bms :>
23:33:54 <T3sl4> parallel would be safer, since you only have one cell voltage to monitor/charge
23:34:14 <T3sl4> series, one cell can get over/under charged
23:40:51 <hsn> sometimes recaptcha brings pictures that are really hard to identify
23:40:56 <Lemon> hmmmm well I'll see then thanks, im going to monitor them to see the minimum voltage the lcr meter needs
23:41:00 <Lemon> and if it unbalance them
23:41:06 <Ysjoelfir> hsn recaptcha always brings shit.
23:41:06 <Lemon> they are from the same batch and almost new
23:41:40 <Ysjoelfir> "find all busses!" - "WTF you shitfuck are showing me a picture of grass!"
23:41:43 <hsn> Ysjoelfir its nice idea, humans train google AI
23:41:59 <hsn> google's AI
23:42:00 <Ysjoelfir> its annoying at best
23:42:31 <hsn> the first initial project i like .. the guy has TEDx talk about it .. it was massive ancient book digitizing
23:42:55 <hsn> then google brought it to the new (reCaptcha) we see everywhere ..
23:55:25 <Ampera> I need to go and do things
23:55:42 <Ampera> Then i need to go do other things after i do those things
23:55:50 <Ampera> I hate that
23:56:50 Join: hsn93 ([email protected]) to #EEVblog
23:59:46 Quit: hsn ([email protected]) Ping timeout: 121 seconds
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