#eevblog - 2020-03-02 - AustNet Archive Project

// #eevblog — 2020-03-02

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« 2020-03-01 2020-03-03 »
00:23 <hsn> lemon ^^ https://academy.fedevel.com
00:29 <hsn> for what ?
00:36 <Ysjoelfir> Lemon: for what? :)
00:53 <Lemon> well, to begin learning electronics, for basics then something more advanced etc :>
00:57 <Lemon> as I cant find a school here
00:59 <Ysjoelfir> I would advice you to take a look at eg. Udemy. or EDX
01:01 <Lemon> maybe online is the way to go
01:11 <EEVBlog> New EEVBlog Retweet: Stock Image FAILS: I MUST get one of these new soldering iron probes. The tip to grip distance looks amazing! Anyone know how many watts? https://t.co/QeNjXrekOx
01:14 <Ysjoelfir> hmmm.. wait. I have to look something up.
02:02 <Ysjoelfir> IIIIIF I could finy my HDD docking station
02:15 <Lord_of_nothing> sry for asking again does anyone here do something with qgis?
02:17 <hsn> eevblog actually has lots of usefull vids ..
02:18 <Ysjoelfir> I am pretty sure I have a beginners electronics video tutorial on there somehow
02:29 <hsn> also w2ae channel
02:34 <Ysjoelfir> Lord_of_nothing, what the hell is qgis
03:04 <hsn> somthing related to qt
03:12 <hsn> so gui thingy i would say :P
03:17 <Lemon> I have a pdf of the art of electronics
03:23 <Lemon> maybe itself its enough idk
04:09 <hsn> Linear Circuit Design Handbook <<
04:26 <Lemon> thanks im going to take that one too :>
04:32 <Lord_of_nothing> now the horrible irc client lok a little bit better
05:04 <Lord_of_nothing> i want to know who had the horrible idea for a black backround and a white text....
05:17 <hsn> Lemon i never read them just store and read first few pages :(
05:35 <hsn> Lost_of_nothing which irc client
06:17 <Ysjoelfir> white on black sounds great
06:24 <Ysjoelfir> I have colorful on black
06:39 <Ysjoelfir> it's the way IRC was from the begin on
08:21 <hsn> open cmd.exe .. type color 0a
08:50 <hsn> its annoying
11:32 Quit: Stiff ([email protected]) Ping timeout: 121 seconds
13:51 Quit: hsn ([email protected]) EOF from client
15:20 Join: hsn ([email protected]) to #EEVblog
17:32 <Lord_of_nothing> I use Icechat the work ok
17:45 <Lord_of_nothing> and i can be in multiple irc sercer at the same time
18:04 <Ysjoelfir> I use AdiIRC. best one I ever used
18:11 <Lord_of_nothing> when the internet connection not crush
18:43 <rust_collector> I use butterfly programming, to send my messages
19:33 <Ysjoelfir> :P
20:21 <hsn> im chatting from a casio calculator
20:34 <Ysjoelfir> I don't chat at all. I use telepathy.
20:47 * hsn silence
20:51 <rust_collector> I do not even exist
20:58 <Ysjoelfir> :O
21:00 <Lemon> I do not even
21:40 <hsn> IPC class 3 is mother of all ..
22:13 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
22:21 <hsn> https://youtu.be/cMxXea16Hxc?t=732 ^
22:30 <hsn> How to create perfect PCB Footprint - What you really need to know ^^
23:39 Join: Lord_of_nothing ([email protected]) to #EEVblog
51:54 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
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05:22 <Lemon> im so afraid to fry the 5345a inputs
05:34 <Lemon> it says 5v max but in the manual ive read that it can be higher with attenuations
05:41 <Ysjoelfir> WHY
05:50 <Ysjoelfir> AH
05:55 <Ysjoelfir> DAMN CAPS .d
16:59 <hsn> is it used to measure crystal oscillators ?
20:23 <Lemon> the 5345a ?
20:29 <Lemon> its an electronic counter
22:37 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
23:27 <hsn> yeah 350MHz one
23:53 <hsn> ?
23:57 <Lemon> 500 :>
25:01 Join: Lord_of_nothing ([email protected]) to #EEVblog
31:05 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
31:51 <Ampera> Lemon, I am now
32:03 <Ysjoelfir> Hi now :)
32:06 <Ysjoelfir> Nice to meet you
32:12 <Ysjoelfir> what happened to Ampera?
32:13 <Lemon> heh :>
32:35 <Lemon> it was to ask you if you knew why it takes so much time to get approved on the forum, from a dude that got the issue here
32:41 <rust_collector> he started existing, I think?
32:42 <Lemon> well, he left but still im interested
32:43 <Ampera> Ysjoelfir, he got replaced with a much crankier person who is more inclined to ban you for making stupid jokes
33:05 <Ysjoelfir> Nice! I like him :)
33:52 <Ampera> I don't moderate the forum, that's a question better asked to someone like Dave, Simon, or gnif, but I usually believe it's due to people kinda falling through the cracks.
34:05 <Ampera> The EEVBlog forums didn't even have an approval process when I joined, years ago.
34:32 <Ampera> and as an operator of my own SMF forum, they are a fucking stadium light to the moths of the internet
35:03 <Ampera> hah, as of the 4th, I've been on the EEVBlog forums for five years.
36:14 <rust_collector> I do not think there was when I joined either, and that is not so long ago
36:37 <rust_collector> but, maybe I just do not remember it
36:56 <Ampera> Some of the time those people come from rather low traffic countries (at least for legitimate traffic), so they may get caught by whatever spam monitoring solution they have, and then subsequently buried.
37:14 <Ampera> Usually whenever it happens that someone complains here, I PM Simon on the forums and he takes care of it
37:45 <hsn> approval proccess ? since when ?
38:38 <Ampera> I will say there is zero way in hell they don't have /something/ to prevent certain registrations.
38:58 <Ampera> SMF forums will get trashed in a day if you don't protect them
39:05 <Ampera> *especially* those on the scale of the EEVBlog forums
39:29 <Ysjoelfir> I personally never used SMF back in my webdesigner days. Is it that bad?
39:48 <Ampera> It's not particularly bad software, though it's rather old at this point and SMF 2.1 can't come soon enough
39:56 <Ysjoelfir> I always used Woltlab Burning Board. The.... Version 2 IIRC. I never liket the third version.
40:03 <Ampera> but it's also been around a while
40:34 <Ampera> Looks like SMF 2.1 RC3 is coming soon
40:42 <Ampera> when it does I might make the jump early and put my forums on it
43:57 <Lemon> how many forums do you have ?
44:25 <Ampera> one
46:15 <Lemon> show me show me
48:44 <hsn> im looking for garbage collection joke meme :>
49:08 <hsn> that i can understand :)
49:08 <Ysjoelfir> why are you looking for a picture of me?
50:30 <hsn> i've got memory leaks Ysjoelfir :P
50:45 <hsn> forgot ur shape
51:10 <Ysjoelfir> basically like a ball with hair.
52:02 <hsn> which one https://snipboard.io/2LJwzI.jpg
52:14 <Lemon> you know Ysjoelfir we were wondering with mamalala how to pronounce your nickname
52:25 <hsn> oh shit that is not good search words
52:27 <Lemon> so we kept calling you 'ygresydfir' or something xd
52:49 <hsn> i say it (yos jel fir)
52:51 <hsn> xD
52:57 <Ysjoelfir> xD
53:53 <Ysjoelfir> nearly like hsn wrote. but the first part I personally would make... like... (english) "is"
54:08 <Ysjoelfir> so like... is jell fear
54:16 <Ysjoelfir> or something like that
54:20 <Lemon> hmmm I wasnt that far :P
54:31 <Lemon> ysjgrieijfir !
55:41 <Ysjoelfir> xD
57:45 <rust_collector> greisengrurufu
57:52 <hsn> https://snipboard.io/rkUObi.jpg
58:23 <hsn> what is difference between german and dutch
58:34 <rust_collector> dutch is like german with downs
58:59 <hsn> downs = slang ?
59:06 <rust_collector> downs syndrome
59:23 <Ysjoelfir> nice, try the norwegian version of google translate, that sounds about right. but don't try swedish, it sounds like the person speaking just choked on her tongue
00:02 <rust_collector> you are thinking about danish. they always speak like they inhaled a sponge
00:38 <Ysjoelfir> the danish version of google translates oppinion how my name should be pronounced actually sounds pretty good^^
00:54 <rust_collector> heh
03:49 <Ysjoelfir> But I also once heard someone say that danish people always sound like they are speaking swedish, but with a hot potato stuck in their mouth
04:53 <hsn> not so much information about garbage collection of non-volatile memories and file systems :>
05:22 <hsn> in video contents
05:35 <rust_collector> the south of sweden was danish for a long time, and they do sound weird there as well
46:42 Join: PsySc0rpi0n ([email protected]) to #EEVblog
50:59 Quit: Lemon ([email protected]) EOF from client
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13:26 Quit: Lord_of_nothing ([email protected]) Ping timeout: 121 seconds
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41:07 Join: Lemon ([email protected]) to #EEVblog
43:34 <Lemon> im gonna experiment with transistors
44:47 Join: Broxie ([email protected]) to #EEVblog
44:57 <Ysjoelfir> nice!
45:05 <Ysjoelfir> maybe then you have an idea for my appnote!
45:30 <Lemon> :P
45:40 <Lemon> im taking some 2n3904
45:59 <Lemon> so the base emitter voltage, to make current flow through collector-emitter
46:06 <Lemon> its called base-emitter saturation voltage ?
48:18 <Ysjoelfir> I have no idea about transistors, never used one in my life 0:-)
49:50 <Lemon> plsssss
50:20 <Ysjoelfir> no, you don't use that term (at least not in general) for that voltage. BEsat is the voltage where it goes into saturation.
50:42 <Ysjoelfir> sure, it's also A voltage over base/emitter, but not THE voltage
51:24 <Lemon> basically I want to experiment, which voltage/current is needed to turn the transistor ON
51:28 <Lemon> to blink a led
51:31 <Lemon> well, turn it on
51:41 <Lemon> that will help me to understand it better
51:53 <Ysjoelfir> then just start experimenting :)
59:12 Quit: hsn ([email protected]) Ping timeout: 121 seconds
04:27 <DHess_US> The practical way is to operate the transistors at a "forced beta" which means forced current gain.
05:18 <DHess_US> So if the collector current will be 5 milliamps to drive the LED, then the base current will be some fraction like 1/25th or 1/50th operating the transistor with a forced beta of 25 or 50 or whatever.
06:09 <DHess_US> The forced beta is selected to be lower than the minimum worse case beta. Beta is synonymous with hfe or current gain.
07:02 <DHess_US> The base-emitter voltage is just assumed to be like 0.6 volts. I usually assume that the saturated collector-emitter voltage will be 0.3 volts
07:06 Quit: Lemon ([email protected]) EOF from client
08:32 Join: Lemon ([email protected]) to #EEVblog
11:39 Quit: Broxie ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
24:07 <Lemon> so I have a simple circuit taking a NPN, a led, 9v DCV supply
24:26 <Lemon> and when I apply a voltage to the base abd emitter, the led turn on
24:37 <Lemon> it turns on at 2.6v something
25:22 <Lemon> shouldnt it be way less ?
25:26 <Lemon> like 0.7v ?
25:38 <Ampera> https://www.youtube.com/watch?v=Rc7_lCfbQP0
35:55 Join: zener ([email protected]) to #EEVblog
36:50 <steve30> Do you mean the LED turns on at 2.6V, or the NPN transistor turns on at 2.6V?
37:22 <Lemon> well as the led is right behind, I assume that if the npn turns on, the led will ?
46:37 <rust_collector> the led needs a certain voltage to light up, so it could be "on", just not enough for you to see
46:56 <Lemon> thats what I was thinking yeah you are right
47:03 <Lemon> im going to retry that after a video
49:44 <rust_collector> I guess you could hook the led up to the supply, and slowly crank it up, just to see what voltage it needs to be, to get the brightness you want?
51:15 <Lemon> ho I was just experimenting the base emitter voltage to turn on a transistor
52:44 Quit: zener ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
52:52 <rust_collector> ok, but you can turn it on a little bit, or "all the way", so if you just turn it on a little bit, it will be on, but maybe not enough to do what you want
53:17 <Lemon> yeah I wanted to confirm the minimum voltage needed
53:23 <Lemon> the led isnt a good indicator
53:33 Join: zener ([email protected]) to #EEVblog
54:15 <rust_collector> well, you have to think about "the minimum voltage to do what"
54:29 Quit: zener ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
54:31 <Lemon> to turn the transistor on :>
54:47 <rust_collector> enough to make a dmm read something on the output, or to actually do something useful?
55:34 <Lemon> ho but I dont want to make anything useful, I just wanted to see the minimum base emitter voltage needed to turn the transistor on :>
55:51 <rust_collector> Now, I am a complete noob, but I do believe that the transistor really is current controlled, not voltage, so that is a think to consider
56:42 <rust_collector> in the case of a bjt, that is
56:58 <Lemon> well I keep reading that 0.7v value
57:09 <Lemon> thats what I wanted to see but you are right it might be current too
58:24 <rust_collector> you probably need a diode drop or so to turn it on, in general. but I do not think it is the voltage that does the turning on bit
59:03 <rust_collector> butt! I will not argue about that, I hope someone who knows something will tell you
02:45 <Lemon> im going to hook a dmm to see instead of a led
07:41 <rust_collector> use an analog one, or a scope, maybe?
08:33 <rust_collector> but yes, whateverrrrrr
08:39 <Lemon> yeah I could do that
09:05 <rust_collector> would look much better on the bench
11:21 <rust_collector> damnit! I just put my mug in the dishwasher, and I want coffee
38:22 Quit: BurtyB ([email protected]) Ping timeout: 121 seconds
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45:43 Quit: PsySc0rpi0n ([email protected]) Quit: leaving
36:35 <Lemon> digikey sucks for something
36:41 <Lemon> ok you get free shipping after 50 euros
36:53 <Lemon> but what if you want some cents/few euros parts ?
36:58 <Lemon> 18 euros minimum for shipping
37:21 <rust_collector> well, get more of them, you can send the rest up here.
37:35 <rust_collector> what are you looking for?
38:46 <Lemon> I wanted to get a couple pairs of crocodile clips on
38:52 <Lemon> to put them on test leads
39:00 <rust_collector> oh, right
39:14 <Lemon> I wanted mini grabbers too but 8 euros a piece, damn
39:30 <Lemon> I might simply buy some components while im there
39:53 <rust_collector> dont step on them, and they will last for a long time. yes, get some more stuff
41:41 <Lemon> maybe some op amps as I dont have any
42:04 <rust_collector> yes, dual opamps, get a bunch of them
44:33 <Lemon> maybe some other things to learn
45:48 <rust_collector> uhm, some ldr stuff, maybe?
50:05 <rust_collector> maybe 3 of the... 431... things
50:13 <rust_collector> 431?
50:25 <Lemon> ldr ?
50:28 <rust_collector> tl 431
50:39 <rust_collector> light dependent resiator, I guess
50:48 <Lemon> ho I got some I think
50:59 <rust_collector> well, forget that then
51:09 <rust_collector> so... heatshrink?
51:16 <Lemon> got a box !
51:34 <rust_collector> with glue?
51:53 <Lemon> just regular heatshrink I think
52:02 <rust_collector> uuh. uhm, I dunno?
52:39 <rust_collector> maybe an optoisolator, but you probably have those around too
52:54 <Lemon> I salvaged a few I think
53:00 <rust_collector> generic pots?
53:20 <Lemon> mamalala gave some, along with encoders I think
53:24 <rust_collector> zener diodes
53:25 <Lemon> and various mini stuff
53:29 <Lemon> got those
53:35 <rust_collector> get more
53:44 <rust_collector> you will never use them
53:48 <Lemon> transistors, resistors, electrolytics, ceramics, diodes etc
57:49 <Lemon> lets take the transistor experiment
57:58 <rust_collector> 7 segment display thingies?
01:51 <Lemon> I got a shitton, and mamalala gave me another shitton lol
01:53 <Lemon> thats really nice
02:06 <Lemon> all sort of 7 segment, sizes, even smd ones
02:13 <Lemon> some starbursts too
02:39 <rust_collector> ok, so...
03:01 <rust_collector> a saw?
03:46 Join: PsySc0rpi0n ([email protected]) to #EEVblog
06:01 <rust_collector> uranium hexafluoride?
07:14 <Ysjoelfir> I prefer tritium
07:22 <rust_collector> you would
07:22 <Ysjoelfir> the enriched one
08:08 <rust_collector> hmm, was I wrong about the transistors, up there?
08:35 <rust_collector> being current controlled, not voltage, as such?
09:02 <Ysjoelfir> nope
09:39 <rust_collector> ok, I will make a note on my calendar
10:42 <Lemon> ok so I tried to measure it
11:07 <Lemon> it seems indeed, after 0.7-0.8v, voltage seems to pass
11:31 <Lemon> when I measure from the collector to the negative side of the led
14:40 <rust_collector> ok, so that is done, now what?
15:06 <rust_collector> make a small house out of 7 segment displays, and put lego men outside, having a bbq
15:06 <Lemon> well im still not really convinced I should measure current
15:12 <Lemon> but I need my full brain for that
17:37 <rust_collector> heh, some guy is confused, because I was talking about 7 segment displays, in the wrong channel
18:36 <Lemon> :>
22:58 <Ysjoelfir> Rusty, the gf asks whyt your real name is
27:55 <coppice_> he's really called Oxide, or Corrosion to close friends
28:52 <rust_collector> corrosion.gatherer
29:07 <rust_collector> kristian
29:22 <rust_collector> so... yes, that is a thing, innit?
31:00 <rust_collector> now, I get that I can be annoying and racist or something anti-feminist or something, but what the hell did I do to her?
32:59 <Ysjoelfir> Kelly says thanks to satisfy her curiosity^^
34:04 <rust_collector> any time
35:29 <Lemon> I like to see random readings on the fluke
35:42 <Lemon> down to the uV
36:25 <rust_collector> ok, it is not often I like to see random readings on anything
37:01 <Lemon> I just let it on when I do nothing :>
05:44 <Lemon> hey Ysjoelfir, what do you use to clean contacts of pots ? like on HB stuff ?
07:49 <Lemon> IPA ?
08:17 <Ysjoelfir> I use Kontakt 60 to remove oxidisations, clean with IPA (!!! Kontakt 60 is corrosive!), blow that dry with compressed air and apply a small amount of Kontakt 61 to protect the contacts.
08:31 <Ysjoelfir> on big, heavy contacts I sometimes use some grease in addition to the 61.
09:10 <Lemon> hmm idk if I can find that here
09:17 <Ysjoelfir> by the way... rusty: I MAY have soon an URAL motorcycle with sidecart
09:30 <rust_collector> oooh!
09:43 <Ysjoelfir> you can also use teslanol oszillin as a replacement for the kontakt 61. for the 60... hm. no idea
10:01 <Ysjoelfir> yeah, i found someone who would swap it for my Yamaha SR500
10:23 <rust_collector> oh god, was the ymaha that bad?
10:37 <Ysjoelfir> actually I loved the yamaha....
10:49 <Ysjoelfir> but I always wanted a bike with sidecart
10:53 <rust_collector> heh
11:07 <rust_collector> well, it certainly has that, and a lot of it too
11:22 <rust_collector> it is actually really nice and confy in there
11:39 <Ysjoelfir> right now it is just a "maybe", but I hope to make that happen
11:47 <Ysjoelfir> I have never sat in one. is it realy that nice?
11:54 <rust_collector> Well... you know what they say...
12:16 <rust_collector> get a carb balancer, right now, you are going to need it
12:23 <Ysjoelfir> haha :D
12:36 <rust_collector> they are horrible to ride, but the side cart is pretty nice
13:04 <rust_collector> speedbumps are nothing, you just swoop over them
13:54 <rust_collector> I dunno, yours might have the single carb.
14:00 <rust_collector> then ignore that
14:02 <Ysjoelfir> I hope it will work out. would be so cool. especially if the sidecart would be big enough for the gf to fit^^
14:21 <rust_collector> I fit in it pretty well.
14:32 <Ysjoelfir> are you chubby?
14:49 <rust_collector> no no, I am just the regular 115 kg
15:19 <Lemon> can you give me some kgs please ?
15:34 <rust_collector> iIrc, there was room for a sleeping bag and some crap in there too
15:36 <Ysjoelfir> ok. then the 153cm 92 kg girlfriend will fit nicely I assume
15:45 <rust_collector> Lemon, come get them,
15:53 <rust_collector> I would think so
16:10 <rust_collector> she could probably lie down in there, lol
16:15 <Ysjoelfir> hehe
16:25 <rust_collector> take the seat out, and plop in a mattress
16:27 <Lemon> im 65kg right now
16:42 <Lemon> and I took over 18kg since two years ago :>
16:58 <rust_collector> i think I remember being 65kg. i was probably... 10?
16:58 <Ysjoelfir> and she was "maybe I would go for a ride with you in a bike with sidecart.... (hey, thats more than what she did with the yamaha!) but I'm sure I won't fit, I am to fat!
17:36 <rust_collector> you can take the "bucket" off the sidecart, and just weld a chair to the chassis
17:54 <Ysjoelfir> lol
18:03 <rust_collector> use the bucket to plant slowers in or something?
18:09 <rust_collector> or flowers
18:27 <rust_collector> I would suggest tulips
18:34 <Ysjoelfir> great idea!
18:38 <Ysjoelfir> that would look so awesome Xd
19:10 <rust_collector> barstool on the bike, and pulips or turnips in the sidecart
21:26 <rust_collector> is this thing a 650?
21:35 <Ysjoelfir> I have no idea
21:36 <rust_collector> hmm, were they 600 or 650?
21:39 <rust_collector> arrgh
21:47 <rust_collector> it is the newer model?
21:54 <rust_collector> "newer"
21:57 <Ysjoelfir> 1970s, but... no idea too
22:02 <Ysjoelfir> There aren't many information
22:04 <Ysjoelfir> yet
22:04 <rust_collector> with the ohv engine
23:46 <Ysjoelfir> from the pictures I can see that it has pushrods
25:57 <Lemon> I really want to fix the hp scope channel
26:01 <Lemon> im sure its not a big deal
26:04 <Lemon> idk why
26:06 <Lemon> but I feel it
26:38 <rust_collector> figure out how to use the working channel before you break the thing, maybe?
27:06 <Lemon> well I can decently use it honestly
27:19 <Lemon> take single shots, run/stop, change timebase, etc
28:55 <rust_collector> ok, then just replace all the things inside, and it should be good?
29:02 <Lemon> ez !
29:08 <rust_collector> right?
52:09 <rust_collector> or, just move the front cover over, I guess
05:10 <Lemon> https://www.ebay.fr/itm/KEYSIGHT-TECHNOLOGIES-54201A-54201A-USED-TESTED-CLEANED/392663665293?hash=item5b6c940a8d:g:sIIAAOSwFWNeMzWN
05:16 <Lemon> I dont get it
05:21 <Lemon> they seem to sell tons of stuff
05:28 <Lemon> but they really think someone will pay that much ?
06:05 <rust_collector> give them an offer?
06:40 <Lemon> I got the other version, with the logic analyzer
06:54 <Lemon> but look it up you can find some for around 100-150
40:48 Quit: Lemon ([email protected]) Connection closed
45:59 <Lord_of_nothing> when does i can become a alohol addict?
46:22 <rust_collector> at any time you like
46:29 <rust_collector> enjoy
47:11 <Lord_of_nothing> well like apple cyder
47:19 <Lord_of_nothing> maybe a way to much
50:25 <rust_collector> well, deal with it! either accept you have an issue, and enjoy that, or accept it, and do something about it
51:24 <Lord_of_nothing> Yell last week i was in a tesco store who i tooed some canned with me
55:09 <coppice_> Lemon: I think that's the new price
58:43 <rust_collector> good night... you people
58:47 <rust_collector> and lem
58:50 <rust_collector> on
45:43 Quit: Ysjoelfir ([email protected]) Quit: Going offline, see ya! (www.adiirc.com)
15:04 <EEVBlog> New EEVBlog Retweet: Brady Haran: The YouTube Analytics Mirror https://t.co/zmcJb3wxxp https://t.co/hbbo1CCqWv
18:06 <EEVBlog> New EEVBlog Retweet: Very topical side bonus of this, a shorter flu season is likely. :Which was quoting: Ben Domensino: Australia just had its 2nd warmest summer in records dating back to 1910, with a mean temperature 1.88ºC above the 1961-1990 average. Image: Bureau of Meteorology Data: https://t.co/M5rzmJAgsY https://t.co/oqizMdaQP9
21:07 <EEVBlog> New EEVBlog Tweet: I told you those shopping trolley wheel locks don't work. https://t.co/SvnsKMDiRx
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05:45 Quit: MrMobodies ([email protected]) Ping timeout: 121 seconds
43:40 <EEVBlog> New EEVBlog Retweet: Neil Irwin: Why a coronavirus recession would be so hard to contain. https://t.co/17iKfQk4G7 https://t.co/aoNfnSkolO
54:44 <EEVBlog> New EEVBlog Tweet: Japan has closed all schools. Many countries have closed some, expect a lot more. People without kids may not realise the impact of this. It means businesses slow down or shut down because workers are forced to stay home. That's on top of everything else (supply shock) happening.
55:45 <EEVBlog> New EEVBlog Tweet: 2020 will be the year of explosive growth in remote work from home uptake and associated technologies. Guaranteed.
24:25 Join: hsn ([email protected]) to #EEVblog
24:35 <hsn> hola
43:22 Join: JustHarry ([email protected]) to #EEVblog
45:39 Nick: JustHarry is now known as HarryFormallyKnownAsPrince
49:32 Quit: HarryFormallyKnownAsPrince ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
55:19 Nick: hsn is now known as hsnTheKing
55:30 Nick: hsnTheKing is now known as hsn
07:04 <hsn> https://www.cse.iitb.ac.in/~mythili/os/labs/lab-simplefs/ << seems pretty lab for learning how file system work
12:19 Join: Ysjoelfir ([email protected]) to #EEVblog
16:43 <hsn> gm isyelfir
16:50 <Ysjoelfir> moin
17:06 <hsn> how are the things?
18:22 <steve30> hi
18:57 <Ysjoelfir> I am struggling if I should accept the proposed swap of my motorcycle with another one. Besides that.. fine :) Just arrived at work and have to figure out what I can do
19:02 <Ysjoelfir> Hello steve30
22:53 <EEVBlog> New EEVBlog Tweet: Wow, amazing timelapse stadium tour set build https://t.co/STiHjhE1TY
33:02 <hsn> motorcycle swap
33:05 <hsn> its a hot swap
33:14 <Ysjoelfir> no, a pretty cold one
33:20 <hsn> :P
33:38 <Ysjoelfir> cold, old metal swapped for even older metal that has been cold potentially even longer
34:49 <hsn> do u use it ?
35:54 <Ysjoelfir> I did until last year.
50:47 <hsn> do u expect to use it in future ?
55:08 <Ysjoelfir> I expect to use it way more often when I have the other one
23:07 <Halcyon> Evening all
23:16 <Ysjoelfir> Hi Halcyon
23:23 <Halcyon> What's happening?
25:40 <steve30> hi Halcyon
26:03 <Ysjoelfir> I'm thinking about swapping my motorcycle, but I just can't decide if I should realy do it.
28:15 <hsn> Halcyon or steve30 have a blog or somthing?
28:31 <steve30> nope
29:07 <hsn> Coming soon...?
29:19 <steve30> nope
29:40 <hsn> http://stevecoates.net/about.html >?
30:06 <steve30> Well, I intended to write an About Me page but never did.
31:52 <hsn> so i've question about linux
32:22 <hsn> /proc thingy
32:41 <Ysjoelfir> ksssssssss!
32:51 * Ysjoelfir moves back slowly
33:24 <hsn> are these files actually on disk ? if so .. its waste.. if not .. they actually take lots of ram? (inode stuff)?
34:04 <Halcyon> "Everything is a file" in Linux
34:19 <Halcyon> But some "files" refer to devices
35:03 <Halcyon> But no, they don't use resources
35:13 * steve30 cuddles up to Halcyon 
35:16 <hsn> yeah but (file system) is reading these as files .. so they actually in disk ? no .. they have virtual .. right?
35:43 <hsn> virtual driver ?
35:55 <steve30> I'd say they are kind of like imaginary files
36:02 <Halcyon> Yes they exist in the file system
36:18 <Halcyon> For example, if you plug that drive into another machine, you'll see them
36:27 <Halcyon> But some are mounted dynamically
36:34 <Halcyon> For example USB drives etc...
36:58 <Halcyon> BRB, need to reset my port
37:02 Quit: Halcyon ([email protected]) Quit: Leaving
37:38 Join: hsn93 ([email protected]) to #EEVblog
37:42 <hsn93> so kernel (dynamically) puts process (inode structure) on (/proc) .. or actually (/proc) it self is living on ram and being created after boot
38:09 <hsn93> Halcyon u reset your port i got disconnected xD
40:24 <hsn93> the /proc directory contains a stranger type: virtual files. These files are listed, but don’t actually exist on disk; the operating system creates them on the fly if you try to read them.
41:05 Quit: hsn ([email protected]) Ping timeout: 121 seconds
42:07 Join: Halcyon ([email protected]) to #EEVblog
43:38 <hsn93> so how does file system sees (imaginary files) that doesnt really exist
43:48 <Ysjoelfir> magic.
44:13 <hsn93> also if they dont exist on (disk) then they exist on (ram) which means (files living on ram = expensive?)
44:44 <hsn93> MagicVariables ?
45:07 <mamalala> they do "exist" in so far as they are actual entries on the filesystem... but with no content stored on the filesystem
45:33 <mamalala> on the kernel side, a driver (for example) is then linked to the entry in /proc and "listens"
46:01 <mamalala> then you can open that file from an application and read/write to it, which in turn will end up at the respective driver
46:41 <mamalala> many of the entries in /proc are dynamic, that is, created during run-time ... but they can also be static entries in some cases (i.e. permanent entries on the filesystem)
47:15 <hsn93> aha,, so if file system (ie ext4) was updated.. then that (kernel driver) has to be also updated as well individually ? redudandance code ?
47:56 <steve30> I should make some more coffee
48:00 <mamalala> no, the kernel driver part does not really care about the version of the filesystem... it is more or less transparent
48:06 <Ysjoelfir> a tea for me please, steve30
48:35 <hsn93> mamalala thanks got the idea..
49:05 <hsn93> the (idea of the idea) i mean :P
50:07 <mamalala> hsn93: here's a simple example of how it looks in a driver module: https://devarea.com/linux-kernel-development-creating-a-proc-file-and-interfacing-with-user-space/
53:13 <mamalala> also not that it is rather uncommon to have truly static entries in /proc... almost always /proc itself is a virtual filesystem
54:29 <mamalala> you can see that if you type "mount" on a command line... this will show you what filesystems are mounted where, and /proc is then of type proc instead of, lets say, ext4
55:00 * steve30 passes Ysjoelfir some tea
56:05 <Ysjoelfir> thanks!
56:09 * Ysjoelfir sips on the tea
57:42 <hsn93> i guess it exist in function proc_root_init() which is called at boot time ..
17:59 <Halcyon> Naww look how cute: https://www.youtube.com/watch?v=0Da8ZhKcNKQ
18:12 <Halcyon> He's so round
19:31 <hsn93> fillet everywhere
19:34 <hsn93> xD
35:34 Join: Lemon ([email protected]) to #EEVblog
35:41 <Lemon> hi peeps
40:10 <hsn93> hi lemonz
42:19 <Halcyon> Hey Lemon
42:52 <EEVBlog> New EEVBlog Tweet: Is there a 4G WiFi & Ethernet router with SIM card slot and an external 4G antenna connection on the market?
53:43 Join: Stiff ([email protected]) to #EEVblog
20:19 <Ysjoelfir> thats a sweet duck :D
20:32 <Ysjoelfir> hi lé môn
21:20 <Lemon> hello y jeh lfir :>
21:42 <Lemon> theres 0.99euros only for shipping during one day on leboncoin
22:12 <Lemon> but nothing interesting that is elligible
22:16 <Ysjoelfir> nice! buy all the stuff!
23:31 <Lemon> id like to get one of those conductimeters
23:51 <Ysjoelfir> I would like to get an Ural or a Dnepr
23:58 <Lemon> but I have a hard time figuring if it will help me measure down to what I can with the lcr meter or the fluke
25:44 <Lemon> I can measure down to 100 or 10 micro ohms I think
32:11 <Lemon> 10 uOhms for the fluke it seems
33:52 <Lemon> its really jumpy
33:52 Quit: Halcyon ([email protected]) EOF from client
33:58 <Lemon> even on miliohms
34:16 Join: Halcyon ([email protected]) to #EEVblog
34:30 <Ysjoelfir> no wonder :) even the leads can have some millis, and the contact resistances and thermoelectric efects can also add up
35:20 <Lemon> ok thats normal then ! I should try 4 leads maybe
35:34 <Lemon> but the kelvin clips I have for the lcr meter are bnc bois
37:33 <steve30> I just had a nice walk in the sunshine
38:14 <steve30> I think I'll go out on the bike when I've had some food
38:59 <Lemon> good idea :>
42:02 <Lemon> do AC supplies exist at decent prices ?
42:13 <Lemon> like in the same range of common DC supplies
45:08 <K> hello
45:08 <EEVBlog> Hello there, K!
45:32 <K> yay
45:45 <Lemon> hi boi
46:52 <Ysjoelfir> Hello K
47:09 <Ysjoelfir> No, they don't Lemon
47:22 <Ysjoelfir> And I would like to join, steve30. Have to use my bike more often again
47:41 <Lemon> hmm ok
47:57 <Lemon> and on tek scopes, lioke my 2245, do you know if I can remove the big handle ?
48:03 <Lemon> it lays flat now, and it takes space
50:47 Quit: Halcyon ([email protected]) Connection closed
51:23 <Ysjoelfir> well, you can usually remove everything from everywhere, it's just a question of the tools used
52:00 <Lemon> and if its removable without damaging it :>
52:05 Join: Halcyon ([email protected]) to #EEVblog
58:25 <Ysjoelfir> take a pic pls. usually you can disassemble those.
00:24 Join: Lemonizer ([email protected]) to #EEVblog
00:35 <Lemonizer> wut
00:42 <Lemonizer> ho and about that conductimeter ?
01:01 <Lemonizer> do you know if a random one can measure down to nanoohms for example ? even if its not exactly that
01:11 <Lemonizer> the reciprocal or whatever is it called
02:03 Quit: Lemon ([email protected]) Ping timeout: 121 seconds
17:50 Join: hsn ([email protected]) to #EEVblog
19:11 * steve30 meows
20:17 * Ysjoelfir pets steve30
20:25 <steve30> :)
20:29 <Ysjoelfir> Lemon: no, i don't know about random instruments :)
20:30 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
21:36 <Lemonizer> but but
22:03 Join: hsn93 ([email protected]) to #EEVblog
24:15 <Ysjoelfir> :P
24:59 Quit: hsn ([email protected]) Ping timeout: 121 seconds
25:59 Join: hsn993 ([email protected]) to #EEVblog
26:43 <Ysjoelfir> hsn93, what u doooooo? Oo
27:16 <Lemonizer> I want the systron donner manuallllll
27:26 <Lemonizer> its non existent for download
27:33 <Ysjoelfir> I want an Ural or Dnepr!
27:41 <Ysjoelfir> It's also non existent for download
27:47 <Ysjoelfir> I have to buy it
27:49 <Ysjoelfir> which I cant
27:53 <Lemonizer> heh
27:59 <Lemonizer> I saw the manual for sale
28:01 <Lemonizer> but fuck that
28:59 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
43:46 Join: hsn93 ([email protected]) to #EEVblog
47:01 Quit: hsn993 ([email protected]) Ping timeout: 121 seconds
05:50 <Lemonizer> I want a solartron 8.5 digits dmm
05:54 <Lemonizer> dvm
06:11 <Ampera> I want an unending source of songs I like
06:15 <Lemonizer> and a 500+mhz 2gs/s dso !
09:36 <Ysjoelfir> Lemon, there is a (not 8.5, but hey) solartron schlumberger for sale on ebay right now
09:52 <Ysjoelfir> just 120... how the heck do you type that brittish currency thing?
10:12 <coppice_> Ampera: unending without repeats?
10:12 <Lemonizer> which model ?
10:26 <Lemonizer> and how many digitssssss
10:40 <Ampera> coppice_, repeats are fine, but I need to be able to find new songs without having to shuffle through tons I hate.
11:00 <Ysjoelfir> 7150, 6.5 Digits
11:10 <coppice_> Ampera: OK. I'll give you one song, and you can repeat that
11:16 <Lemonizer> heh 120 pounds is nice
11:27 <Lemonizer> but if I get a new dmm I want it better than what I have I think :>
11:36 <Ampera> you don't even know if I'll like it or have already heard it
11:39 <Lemonizer> those 8.5 digits solartron are somewhat affordable compared to other 8.5
11:49 <Lemonizer> but it wont be now !
12:15 <Lemonizer> now I think im going to make a 50 euros order on digikey, for crocodile clips, mini grabbers, some op amps and maybe some components to learn
27:49 <Ampera> I think I'm going to try reimplementing my music SFTP share as a private git repository
27:56 <Ampera> that way whenever I add more music I can more easily sync files
29:16 <Ampera> it also sounds like a fun project to get me better acquainted with git
46:01 <hsn93> git clone Ampera
47:45 <hsn93> echo "non_music" > .gitignore
51:44 <hsn93> i do have bad habit of using github for syncing local and (godaddy) server .. im commiting everything with bad commit messages + no branching
51:45 <EEVBlog> 42, hsn93!
53:13 <hsn93> i do (git add -A - ---> commit ---> push) ... ssh to godaddy and (git pull) .. i feel its very bad habit
53:32 <hsn93> EEVBlog status
53:32 <EEVBlog> Latest EEVBlog Tweet: Is there a 4G WiFi & Ethernet router with SIM card slot and an external 4G antenna connection on the market?
56:46 <hsn93> 42, hsn93! === Ampera or Bot ?
57:29 <Ampera> that's the bot
57:29 <Ampera> Whenever I implement actual AI into the bot I'll release the payloads it was doing
57:29 <Ampera> surprisingly one of the payloads has never fired.
59:49 <hsn93> what AI ur building ?
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