// #eevblog — 2020-03-17
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00:05:14 <coppice_> Ysjoelfir: if your girlfriend is in kindergarten, don't you feel a bit old for her?
00:05:37 <Lemon> if she talks, she's too old
00:05:58 <K> schools are out here too
00:06:05 <K> kindergardens are in
00:06:45 <coppice_> Lemon: he didn't say it like that. That's media distorting something he said about the inevitability that some people will die
00:07:21 <Lemon> well, I heard him speaking, I didnt read anything media said about that
00:07:34 <Lemon> and honestly, it was kinda messed up, theres some ways to say something
00:07:44 <Lemon> especially when you talk to millions of people that are already afraid
00:07:57 <coppice_> he's not exactly the world's greatest orator
00:08:03 <coppice_> or human being, for that matter
00:08:34 <Ysjoelfir> coppice_: fu :P I mean she is working there^^
00:09:07 <coppice_> he's an obnoxious little turd, but I'd rather hear some speak their mind unfiltered than the usual BS
00:12:40 <Lemon> yeah sure but not everyone is calm peeps like us
00:12:47 <Lemon> you gotta take in account people that go nuts for nothing
00:13:04 <Lemon> and I mean, its a bad move... they should do something and take example on italy and other countries
00:13:19 <coppice_> people go nuts for nothing BECAUSE they are not used to hearing what people actually think
00:13:39 <Lemon> thats the explaination yes, but the fact is : people go nuts :>
00:13:42 <Lemon> so you gotta take it in account
00:13:47 <Lemon> especially during a crisis
00:14:06 <Lemon> saying they'll lose relatives is true yes
00:14:15 <Lemon> but doing nothing, not closing schools etc
00:14:21 <Lemon> excuse me but thats fucked up
00:14:29 <Lemon> 'it will resolves by itself' yes sure
00:14:35 <coppice_> people are tired of BS. that's why straight speaking idiots like Trump and Johnson have a following
00:14:41 <Lemon> but we can do something to take less damage
00:14:57 <coppice_> Italy is the worst possible example to follow
00:15:07 <Ysjoelfir> the girlfriend just told me that JUST IN THIS DAY 15 (!) other kindergardens got closed because stupid parents brought children with obvious symptoms.
00:15:30 <Lemon> Italy ? they had a problem, they did something : closing everything
00:15:34 <Lemon> besides vital stuff
00:15:40 <Lemon> like france is going to do
00:15:45 <Lemon> thats a logical response to it imo
00:15:48 <Ysjoelfir> But hey, we are the germans, we have the best healthcare and crisis management EVER, there won't be any issue in NOT closing any remaining kindergardens, where those children, that don't show symptoms (yet), get distributed to
00:15:49 <Lemon> what else should we do ?
00:16:06 <coppice_> Italy CREATED problem and were PANICKED into a reponse. This is not a model to follow
00:16:17 <Lemon> nah im not talking about that
00:16:27 <Lemon> I mean, they got infected by something, they closed everything
00:16:33 <Lemon> thats how we should all react
00:17:19 <coppice_> If you want to follow a model, follow one that works, like HK or Singapore. They have their problem properly under control and are now banning people from the EU
00:17:31 <Lemon> yeah sure
00:17:43 <Lemon> im just talking about the fact that we have to close non vital stuff
00:17:49 <Lemon> and avoid people going everywhere
00:18:04 <Lemon> UK saying 'its fine just go to work like usual'
00:18:06 <Lemon> thats fucked up
00:18:12 <Lemon> thats how you spread a virus
00:19:10 <Ysjoelfir> [14:18:03] UK saying 'its fine just go to work like usual' <-- just like germany
00:19:16 <Lemon> yeah
00:19:41 <Lemon> france took a late decision, but well at least we are somewhat doing something
00:19:52 <coppice_> Italy is saying people can delay mortgage repayments. This in a country where most banks are tettering in the brink of collapse. Corona virus is not the only problem countries face. Economic hardship also kills
00:19:54 <Lemon> and we are bad at taking decisions
00:20:19 <Lemon> ho thats true im speaking purely about how to not spread a virus
00:20:59 <coppice_> you can stop the virus by shutting down entire economies, but then people starve
00:21:20 <Lemon> but it doesnt need to be so radical
00:58:26 <Lemon> hmmmmm a dude sells somme nice decade boxes from the danbridge brand
00:58:29 <Lemon> 40 euros a pop
01:01:57 <hsn93> this favorite list keeps growing .. i dont think im refering to it anymore : https://snipboard.io/3VB87k.jpg
01:06:13 <Lemon> the dude answered fast, he still got the two I wanted but at work, and he is in quarantaine lol
01:20:39 <hsn93> one of the viruses looks like penis : https://youtu.be/NJLXdsO1GBI?t=113
01:21:32 <hsn93> lol all of them look like sex toys
01:23:24 <hsn93> nice video btw ^
01:32:09 <Ysjoelfir> they look cute^^
01:40:46 <K> fuck them with a cactus.
01:51:46 <Ysjoelfir> https://i.kym-cdn.com/photos/images/newsfeed/000/087/996/gNVkN.png?1318992465
01:53:29 <T3sl4> exactly what i was thinking
01:54:03 <T3sl4> so enjoy this instead https://i.imgur.com/WCEhGOB.gif
01:55:03 <Ysjoelfir> rofl
01:55:04 <Ysjoelfir> nice one
02:09:57 Quit: AndrevS ([email protected]) EOF from client
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02:42:24 Quit: coppice_ ([email protected]) Connection closed
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02:44:47 Quit: MrMobodies ([email protected]) Connection closed
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03:10:30 Quit: Ysjoelfir ([email protected]) Connection closed
03:29:04 <DHess_US> https://imgur.com/gallery/yBGruZS
03:31:03 <K> and then arrest that ass when it actually comes
03:36:13 Join: Beni ([email protected]) to #EEVblog
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04:18:32 <DHess_US> https://usercontent.irccloud-cdn.com/file/aRQF0u0e/IMG_2203.JPG
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05:08:52 <rust_collector> le hello
05:09:44 <steve30> hi
05:09:58 <rust_collector> hullo mr steve
05:10:17 <rust_collector> has anything interesting happened today?
05:10:41 <rust_collector> I am still working on my fake lack of drain cleaner project
05:10:46 <steve30> I cleaned the windows, if you consider that interesting
05:10:52 <rust_collector> oooh!
05:11:26 <rust_collector> I find it interesting that a person would do that, so I guess....
05:12:25 <steve30> Seems a lot of people don't, but I don't like looking through dirty windows, especially on sunny days
05:13:34 <rust_collector> That is why I have curtains
05:15:51 <Lemon> I like my windows when I cant see through
05:18:34 <rust_collector> what did you buy today, Lemon
05:19:35 <Lemon> ho nothing, just won the bid on that second probe, the seller told me 'I cant send it as theres the quarantaine', he's in france
05:19:53 <Lemon> even if theres the quarantaine he can still deposit the package in a tobacco shop
05:19:56 <Lemon> bullshit
05:20:05 <rust_collector> there is no quarantine on goods anyway
05:21:29 <rust_collector> I got to a company today. I am here to pick up a thing..... "NO! STOP! you can not go in there!" ok... so... why did you order a pickup...???
05:22:15 <Lemon> people are so dumb
05:23:57 <rust_collector> why don't you like bicycles anyway?
05:24:20 <Lemon> I like bicycles
05:24:21 <rust_collector> I think you need a cargo bike
05:24:35 <Lemon> I have a nice selfmade ebike
05:24:44 <rust_collector> no, you don't
05:25:17 <rust_collector> I have not seen pics, so it does not exist
05:25:41 <Lemon> fact
05:29:12 <rust_collector> ........
05:29:36 <rust_collector> so, you are not going to buy both of punkyjacks power supplies?
05:38:51 Join: Spark_Gap ([email protected]) to #EEVblog
05:44:51 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
05:45:32 Join: Spark_Gap ([email protected]) to #EEVblog
05:51:23 Join: Ysjoelfir ([email protected]) to #EEVblog
05:51:23 Quit: Ysjoelfir ([email protected]) Changing hosts
05:51:29 <Ysjoelfir> I.... survived!
05:51:51 <rust_collector> aaawww.
05:51:57 <rust_collector> well, maybe next time
05:52:01 * Ysjoelfir collapses
05:52:06 <rust_collector> flop!
05:52:20 * Ysjoelfir makes exactly that sound while collapsing
05:52:41 <rust_collector> did you try using shoes or bicycle or something?
05:52:52 <Ysjoelfir> No. Much worse.
05:53:03 <rust_collector> hahaha, no
05:53:03 <Ysjoelfir> (in fact, I ride my bike rather regularely)
05:53:14 <Ysjoelfir> Much, much worse
05:53:19 <Ysjoelfir> I went groceries shopping
05:53:20 <rust_collector> ok, but that does not make it un-bad
05:53:29 <rust_collector> oh, nice
05:53:35 <rust_collector> did they have any?
05:53:41 <Ysjoelfir> yes
05:54:15 <Ysjoelfir> I had to defend my can of beans four fucking times
05:54:26 <rust_collector> I am trying to get a thing going, where people thing we are running out of drain cleaner, and go buy a lot of it, just in case...
05:54:36 <Lemon> rust_collector he got two ? I bought the metrix one
05:54:45 <Ysjoelfir> I would like to see that
05:54:51 <rust_collector> yes, me too
05:54:59 <Ysjoelfir> No fucking toilet paper
05:55:02 <Ysjoelfir> no flour
05:55:03 <Ysjoelfir> no yeast
05:55:06 <rust_collector> Lemon, yes, he has one homemade one also
05:55:25 <rust_collector> was it metrix? the blue one?
05:55:44 <Lemon> yeah
05:55:56 <Lemon> I got a nice price of 34 total instead of 43
05:56:00 <rust_collector> https://www.leboncoin.fr/vi/1759257824.htm/
05:56:12 <Ysjoelfir> no chicken, no ground red meat, no potatoes, no onions, no bananas (why!? they last for like three days before they rott away!), no toothpaste, no canned food whatsoever, no tea and no marmelade
05:56:31 <rust_collector> maybe they just loke bananas?
05:56:42 <rust_collector> loke?
05:56:51 <rust_collector> like or love
05:57:02 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
05:59:07 <rust_collector> maybe the store was out of potatoes, so they figured potatoes have potato peel, bananas have banana peel, so they can probably boil them for dinner
06:00:06 <DHess_US> All of the carrots and potatoes were gone when I visited yesterday.
06:00:30 <rust_collector> maybe someone warned them, that you were coming?
06:00:33 <Ysjoelfir> I didn't look for carrots as I don't particularely like those. But I'm pretty sure I never saw any
06:00:37 <DHess_US> And frozen food was seriously depleted.
06:01:04 <DHess_US> Oh, it was *only* the baking potatoes which were gone. *shrug*
06:01:51 Join: Spark_Gap ([email protected]) to #EEVblog
06:01:57 <DHess_US> I got the feeling based on what was depleted that a lot of people who do not normally cook and usually eat out are shopping for the first time.
06:02:48 <Ysjoelfir> I would agree with that feeling
06:03:02 <rust_collector> did you find any drain cleaner?
06:03:04 <DHess_US> I just buy whatever is on sale. So I have plenty of pasta, frozen fish, some soup, and then the staples.
06:03:16 <DHess_US> Drain cleaner?
06:03:29 <rust_collector> the unclogging stuff
06:03:32 <DHess_US> I haven't noticed drain cleaner being depleted at all.
06:03:43 <DHess_US> Yea, I have a bunch of mainline cleaner.
06:03:44 <rust_collector> no, but did you SEE it?
06:04:00 <DHess_US> Yes, I saw that it was not depleted at all.
06:04:26 <rust_collector> I think there will be a shortage in a few days, you should tell all the people to buy a few bottles, just in case
06:04:27 <DHess_US> Why would there be a run on drain cleaner?
06:04:58 <rust_collector> I have no idea, but it is my project this week, to see if I can make people panic and buy some
06:05:36 <rust_collector> it has a long shelf live too!
06:06:47 <Ysjoelfir> one of the woman that wanted to steal my canned beans was wearing a face mask (not the small kind, I am talking about... that https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/SCBA_Atemschutzmaske_mit_Filter_Feuerwehr_Hamburg.jpg/275px-SCBA_Atemschutzmaske_mit_Filter_Feuerwehr_Hamburg.jpg kind of mask), long sleeve gloves taped with duct tape to her coat, and her shopping cart was piled up with stuff that would normally only fit into
06:06:47 <Ysjoelfir> two carts
06:07:55 <rust_collector> rammstein fan then
06:08:22 <Lemon> my mother went to get some stuff too, it was almost empty
06:08:28 <Lemon> full of arabs with tons of stuff
06:08:33 <Ysjoelfir> I also got 10 cans (the mini small ones! like, 50 grams) of tomato paste. I just ran out and have always around 20 cans of that stuff on stock since I use it all the time. I just took all that were left, which was actually 14. when I got to the cashier only 10 remained. No idea where the other four went
06:09:01 <Lemon> some where stealing from other people...
06:09:05 <Lemon> people are so dumb
06:09:12 <Lemon> but well, thanks to media I guess
06:09:23 <Lemon> 'ho theres no shortage ? lets speculate on one'
06:09:40 <Lemon> at least germany is closing everything
06:09:42 <Lemon> from what I heard
06:09:53 <Lemon> we'll know tonight if we are in quarantaine or not
06:10:56 Join: Spark_Ga_ ([email protected]) to #EEVblog
06:11:33 <Ysjoelfir> [20:09:36] at least germany is closing everything
06:11:36 <Ysjoelfir> you heard wrong, sadly
06:12:31 <Ysjoelfir> I get the girlfriend to explain the situation, her english is better :D
06:12:48 <Ysjoelfir> hello ^^
06:12:58 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
06:14:15 <DHess_US> https://pbs.twimg.com/media/ETMSXZJWsAAxQch?format=jpg&name=900x900
06:17:40 <Ysjoelfir> I heard I have to explain something. It's true that most shops, bars etc. are closing, but there is also a regulation which allows parents who are doctors, nurses or have any other kind of relevant job that helps regulate everything around us to give their children to the kindergarten or schools. So basically, I am working right now and even though I don't know how many children will come and what will happen (because the information we get
06:17:40 <Ysjoelfir> is changing every 60-80 minutes) right now I know that I will probably supervise children from 15 different day care centers, together with my work colleagues.
06:18:17 Join: AndrevS ([email protected]) to #EEVblog
06:18:56 <rust_collector> sounds like up here
06:18:56 <Lemon> our dear president speaking live
06:19:02 <Lemon> saying no one will be left without ressources
06:19:18 <mamalala> well, most shops will stay open... in fact, they are allowed to open on sundays as well now
06:19:22 <Lemon> 300 billions of euros will be used to help firms, factories etc
06:19:27 <rust_collector> macaroni is so cute when he tells lies
06:19:36 <Lemon> I can hear his dick hitting the desk
06:19:36 <mamalala> https://www.bundeskanzlerin.de/bkin-de/aktuelles/vereinbarung-zwischen-der-bundesregierung-und-den-regierungschefinnen-und-regierungschefs-der-bundeslaender-angesichts-der-corona-epidemie-in-deutschland-1730934
06:19:45 <Lemon> 'I hope those fucker will vote for me in two years'
06:20:53 <mamalala> what i'm wondering is how III. will go down here... especially "Zusammenkünfte in Kirchen, Moscheen, Synagogen und die Zusammenkünfte anderer Glaubensgemeinschaften."
06:21:24 <mamalala> i'm expecting some violence in my area due to that
06:22:29 <Lemon> Ysjoelfir courage Kelly ! I was in your position a few years ago, I'm thankful that I dont have to live that right now, but at least, be sure that you are helping a lot of people ! and you are brave enough !
06:23:01 <mamalala> just was at the Netto supermarket... first i thought they were closed... not a single car on the parking lot
06:23:52 <mamalala> inside... no toilet paper, no paper towel rolls, no noodles, no milk, no packaged bread, etc... more than half of the cooling shelbves are empty... no fresh meat...
06:24:18 <mamalala> i'm just wondering what the people are doing with all that toilet paper and paper towels... do they eat that stuff?
06:24:36 <Lemon> I bet its to clean the sweat
06:24:39 <rust_collector> you can make booze from that
06:24:52 <mamalala> guess at least they can wipe their asses shiny clean before they drop dead... haha
06:25:18 <Ysjoelfir> I'm not sure if people will follow that, either. Over here in Frankfurt, many things are closing down, like the Palmengarten, the Zoo and alot of the entertainment areas. Shops are open of course. Kai had the same situation, mamalala. He was in Edeka and almost everything was sold out. He found some small cans of tomato paste, and 4 times, people tried to steal out of the cart.
06:25:58 <mamalala> Ysjoelfir: yea, it's crazy ... like the zombie apocalypse is comming, or somesuch
06:26:41 <Lemon> I had an appointement to get my tooth fixed today, noone called me to say its cancelled, got there (50km back and forth) 'ho its cancelled, we called you' 'no you didnt' 'ho well, you should have figured out by yourself'
06:26:49 <Lemon> man we arent in quarantaine...
06:26:54 <Lemon> well now we are
06:27:02 <mamalala> thing is, i spoke to them, they said they just got a delivery this morning, everything was stocked to the brim... by later afternoon, almost everything was gone
06:27:10 <Lemon> but not atm, and yesterday they sent me a message to remember me the appointement
06:27:13 <Ysjoelfir> Thanks, Lemon. We will try our best. We will try to give the children the best time they could ever have
06:27:38 Quit: qeed ([email protected]) Client exited
06:27:38 <rust_collector> ice cream?
06:27:53 <Lemon> I'm sure you will ! but if one is coughing too much.... kick him far away !!! :P
06:28:13 <mamalala> rust_collector: well, funny enough, most of that is gone as well... so are frozen pizza's, frozen fish, etc.
06:29:15 <rust_collector> If I could eat milk, I would probably be ok with 2 weeks off, eating ice cream
06:29:33 <mamalala> haha, fair enough
06:31:05 <mamalala> what's going to be funny, reading that press info, is that they want some kind of entry control for shops, no queues at the cash register, etc... how is that supposed to work...
06:31:26 <mamalala> "grab a number over there, and wait until your number lights up!"
06:31:29 <rust_collector> slowly
06:31:53 <rust_collector> rent a football field, and put the people there, while they wait
06:32:27 <mamalala> well, stuff like sports places (including football fields) are to be closed ... so that's not going to work
06:32:39 <mamalala> it's all so silly
06:33:11 <rust_collector> they are closed for sports stuff... does it say it is illegal to sit there, waiting in line?
06:33:23 <mamalala> restrict the number of people in a shop, regulations for minimum distances etc... but the mailman can happily gor from door to door, spreading whatever nasties he has?
06:33:45 <Lemon> yes please I want my toys to come soon
06:34:04 <rust_collector> mailmen never do that
06:34:55 <mamalala> well, playgrounds are to be closed... so would assume that no large gatherings of any kind are are allowed either, in the long run
06:35:19 <mamalala> also, "III. Zu verbieten sind - Zusammenkünfte in Vereinen und sonstigen Sport- und Freizeiteinrichtungen ..."
06:35:30 <rust_collector> that is why you need all the space, they can sit on their 1.2x1.2m grid
06:35:40 <mamalala> which indeed means that gatherings on a football field are forbidden as well
06:36:03 <rust_collector> meh, they can change that in 13 seconds
06:37:00 <rust_collector> I think you got the same stuff we did up here, more or less. at least it sounds like it
06:37:43 <mamalala> otoh, traffic has massively reduced here... which is rather nice
06:37:57 <rust_collector> yep
06:41:23 <Lemon> damn, in 1970 guildline had a teraohmmeter capable of measuring up to peta ohms with 1 percent accuracy
06:44:00 <Lemon> https://www.ietlabs.com/pdf/GenRad_History/A_History_of_Z_Measurement.pdf
06:44:07 <Lemon> really interesting
06:47:11 Quit: Spark_Ga_ ([email protected]) EOF from client
06:50:45 Join: qeed ([email protected]) to #EEVblog
06:52:25 <Lemon> hey mamalala ! im making a little stock of bnc adapters, attenuators, loads etc, do you know anything in particular I should own, to use with my generators/scopes ?
06:53:36 <mamalala> well... no matter what you buy, there will always that moment where you need exactly that one thing no one told you abou, that you never bought
06:53:52 <rust_collector> just get 3 of each
06:53:54 <Lemon> haha yeah well, im trying to reduce that number of missing thing :P
06:54:24 <Lemon> I bought from a guy : 6, 10 and 20 db attenuators, 50 ohm load in cap and male/female, a T, and a bnc to female banana
06:54:35 <Lemon> also made an offer to a 3db attenuator to another dude
06:54:40 <Lemon> those are radiall branded
06:54:46 <Lemon> 20 euros for the lot, that was nice
06:55:00 <DHess_US> Attenuators are often needed as pads to reduce reflections. 3db, 6db, and 10db are particularly good for this.
06:55:20 <Lemon> as pads ? yeah I need a 3db one !
06:55:37 <DHess_US> A precision switched attenuator is very useful for making measurements.
06:56:04 <Lemon> precision switched ? wait I need to document myself on this
06:56:23 <Lemon> I can just tell you that the one I bought are regular male/female radiall attenuators, with a fixed value :>
06:57:46 <DHess_US> https://i.ibb.co/b1tQhtr/Unlawful-Attenuator.jpg
06:58:05 <Lemon> hoooooooo nice one !
06:58:08 <Lemon> it works like a decade box ?
06:58:12 <DHess_US> Just don't let a cop see it in your car.
06:58:25 <Lemon> haha yeah !
06:58:31 <Lemon> I just saw one that had a dial
06:58:33 <DHess_US> cover it with a blanket or put it inside something.
06:58:34 <Lemon> from 0 to 70db
06:58:45 <Lemon> but it was a tad pricy
06:58:46 <DHess_US> Anything with 1dB resolution is fine.
06:59:16 <rust_collector> eeh, if a cop sees his car... Well, there is a rumor that he would have other issues
06:59:26 <Lemon> yeah anyway
06:59:45 <DHess_US> rust_collector, got pulled over and that attenuator was probable cause to interrogate me and tear my car apart.
07:00:34 <rust_collector> well, if you did not have that thing, they would find something else... HEY! this guy has 3/4 of his tank full of fuel!
07:00:48 <Lemon> can you stack regular fixed value attenuators ?
07:00:53 <Lemon> those male/female one
07:01:00 <DHess_US> tools, test equipment, whatever. But it was the attenuator sitting on the dash that started it.
07:01:09 <DHess_US> Lemon, sure.
07:01:23 <Lemon> ok nice
07:02:01 <Lemon> https://www.ebay.fr/itm/Alan-Industries-75TX82-5-BNC-Miniature-Toggle-Switch-Attenuator/111800506456?hash=item1a07d45858:g:SeIAAOSw5VFWI1wG
07:02:07 <Lemon> the 6 should have been a 4
07:02:36 <Lemon> nevermind
07:02:38 <Lemon> its the same
07:03:23 <DHess_US> The values which matter usually are 6db (x2), 14db (x5) and 20db (x10), but 14dB which is uncommon can be made by stacking 6db and 8db.
07:03:59 <DHess_US> Of course 3db, 2db, and 1db are handy also.
07:04:08 <Lemon> hmmm ok thanks, I'll try to find a 3/2/1 and 8
07:04:49 <DHess_US> Oh, and 8dB is 2.5x so also useful and since 6dB is 2x, it makes sense to have both of them and not 14dB which is uncommon.
07:04:58 <DHess_US> But you can find 14dB also if neccessary.
07:05:29 <DHess_US> So 6, 8, and 20 are the ones I would consider indespensible.
07:05:45 <DHess_US> The RF guys add 1, 2, and 3.
07:06:26 <DHess_US> You can also get switched attenuators which are slide switches, rotary, relays, whatever.
07:06:44 <DHess_US> So like you could get one out of a parts mule spectrum alalyzer.
07:07:36 <Lemon> one day I'll get a spectrum analyzer
07:07:46 <Lemon> but first I need to play with what I have :>
07:08:02 <Lemon> attenuators will come handy as I'll play and learn with mah new gen soon
07:10:05 <Lemon> http://www.jyebao.com.tw/upload/FAT-BM5BF5T1G1W1.pdf
07:10:08 <Lemon> are those acceptable ?
07:10:15 <Lemon> or should I try to get some radiall used one
07:10:22 <Lemon> I read somewhere that radiall is a nice brand
07:15:58 <Lemon> damn they can be pricy
07:16:07 <Lemon> that lot for 20 euros was a nice deal
07:16:09 <DHess_US> I just get used ones off of ebay
07:16:17 <DHess_US> Or buy them at the ham radio swap meet.
07:16:20 <Lemon> problem is shipping
07:17:36 <DHess_US> For SMA I have sets of these, https://www.minicircuits.com/WebStore/dashboard.html?model=VAT-6%2B
07:17:45 <DHess_US> For BNC I have old Tektronix ones.
07:18:02 <Lemon> ha mini circuit I keep seeing this brand
07:18:05 <DHess_US> Plus I have various N and GR-784 ones that I picked up here and there.
07:18:08 <Lemon> how much you paid for bnc ones ?
07:18:51 <DHess_US> prices aren't all that good on ebay compared to the ham swap meet I bought the mini circuits ones at.
07:19:18 <DHess_US> Not more than $10 each
07:19:31 <Lemon> hmmm ok I'll try to stay at that price or less
07:20:09 <DHess_US> I'm only missing the Tektronix 2.5X attenuator
07:20:32 <Lemon> I found two, 1 and 2db, mini circuit and another brand for 4.5 euros each but theres a total of 9 euros of shipping
07:21:09 <Lemon> https://www.ebay.fr/itm/M-A-COM-Attenuator-3282-6171-01-BNC-1-dB-DC-4-GHz/270725367474?hash=item3f087d46b2:g:zjAAAMXQjwVQ-6lT
07:21:47 <Lemon> well with those I can make the 3db one, and with the 2 + a 6, the 8db
07:21:57 <DHess_US> I always buy them in pairs. Two of each value is much more useful.
07:22:11 <Lemon> hmm yes I was wondering that
07:26:31 <Lemon> if I can pay 30 euros max for 2x1db and 2x2db, could be nice
07:27:15 <Lemon> ha shiet one is SMA
07:28:34 <Lemon> M/A COM, idk if this brand is nice or not
07:28:40 <Lemon> I ddont even know if it really matters
07:32:24 <Lemon> https://www.ebay.fr/itm/1PCS-NEW-0-82DB-VARIABLE-STEP-ATTENUATOR-50-OHM-for-Ham-Radio-Transmitter-etc/222974186922?hash=item33ea4c15aa:g:PR0AAOSwtRBbkKc3
07:32:28 <Lemon> like those, are they worth it ?
07:33:12 <DHess_US> Probably don't need two step attenuators.
07:33:36 <Lemon> ho I would just buy one
07:33:48 <Lemon> but I was wondering if chinese stuff like those are worth it or not
07:34:17 <DHess_US> That ones has UHF connectors so only intended for HF
07:34:28 <Lemon> shit yes I just noticed
07:34:32 <DHess_US> I"m sure it would be fine for calibration purposes.
07:35:22 <DHess_US> One of the things you do is measure the attenuation at a high signal level, and then use it to attenuate a lower level signal to the microvolt level.
07:35:58 <DHess_US> So you can calibrate it using a function generator and AC multimeter, and then use it to produce an accurate microvolt output by only measuring the input.
07:36:46 <Lemon> hmmm I will definitively try that
07:38:57 <DHess_US> So it lets you generate accurate low level signals which would normally be outside of the range that you can measure.
07:39:51 <Lemon> I'll also get to play with my neat 5345a !
07:41:05 <Lemon> https://www.leboncoin.fr/equipements_industriels/1764981648.htm/ woah, now thats ultra cheap ! I have the 710a so I dont need it, but when I see ebay prices...
07:43:26 <DHess_US> Look carefully, https://www.google.com/search?client=firefox-b-1-d&q=democratic+party
07:44:04 <Lemon> hmmmm ?
07:44:10 <Lemon> https://www.leboncoin.fr/electromenager/1761092944.htm/ (another neat deal)
07:44:48 <DHess_US> Kind of specialized unless you work on RF stuff.
07:45:05 <Lemon> ho yeah I dont need that
07:45:08 <Lemon> but thats quite a low price
07:47:56 Join: Spark_Gap ([email protected]) to #EEVblog
07:49:01 <rust_collector> maybe you should just start with rf stuff?
07:49:29 <Lemon> ho idk theres so much things
07:49:48 <rust_collector> ...
07:50:12 <Lemon> I already have a ton of things to learn and play with
07:53:02 <rust_collector> yep
07:53:24 <Lemon> I need to redo the organisation of my room
07:56:16 <Lemon> im also learning some rubik algs to work on my memory
07:58:42 <rust_collector> I did not have much to do at work today, so I made this out of 2 straps, and 3 mail bags: https://imgur.com/a/0wWxGII
07:59:16 <rust_collector> I have to make a pillow, but other than that, it was pretty comfy
08:02:18 <Lemon> lol pretty nice
08:09:22 <Ysjoelfir> nice one :D
08:10:02 <Ysjoelfir> one of your more or less colleages managed to destroy our driveway at work today
08:10:41 <rust_collector> ah, good! did you get his nick, so I can send his bonus?
08:13:35 <rust_collector> hmm, from my list, it was either "robocop 2000" or "cynep nbah"
08:13:45 <rust_collector> was he tall or fat?
08:14:51 <Ysjoelfir> xD he was tall. and potentially either chech or russian
08:15:15 <Ysjoelfir> and he had his arms full of bitumen after that
08:15:25 Quit: AndrevS ([email protected]) Quit: Leaving
08:15:52 <rust_collector> super ivan is fat and russian, robocop2000 is from slovakia
08:16:09 <rust_collector> uuh, wth did he do, to get road on his arms?
08:17:45 <Ysjoelfir> not properly securing his load. He had 500 liters of bitumen (the liquid until it comes in contact with air kind of bitumen for sealing rooftops), stacked in 20 liters buckets in his truck, drove way too fast around the corner onto our property
08:18:08 <rust_collector> haha, securing a load... pffft
08:18:23 <Ysjoelfir> the buckets tipped and broke and some liters, we guess around a hundret, splattered over the driveway and onto the parked cars
08:18:50 <Ysjoelfir> he backed up to the delivery place while the stuff was still dripping from the truck
08:19:33 <Ysjoelfir> when he came out and noticed that he had made a little mess, he was like "ah, sorry, just give me a broom and I clean that realy quickly
08:20:47 <Ysjoelfir> in the end, we had six firefighter trucks from two fire departments, two ambulance and two police cars around
08:21:04 <Lemon> idk if it was really needed but well :>
08:21:20 <Ysjoelfir> well, it kind of was. since nobody knew what the stuff was since he had no loading papers with him...
08:21:40 <rust_collector> heh
08:21:53 <rust_collector> people like their papers...
08:21:55 <Ysjoelfir> they only found out when the firefighters opened the truck, dressed in full body cover with respirators and everything
08:23:51 <Ysjoelfir> in the end it wasn't too bad, but it'll be pretty expensive for DB Schenker. I feel sad for the poor driver. I know how it goes when the dispatchers plan your trip so tight that you CAN'T propperly secure your load without being late for the next customer
08:25:34 <rust_collector> One interesting thing, when you have dangerous goods... you have to have the papers, saying what it is, blah blah blah... the thing is that the papers have to be "on the transport vehicle" which often means you stick it on the pallet. I bet that is much use when it is upside down, and on fire
08:25:34 <Ysjoelfir> the driveway needs to be completely new paved (around 600m²) and many cars need special cleaning since the stuff sprayed all over the windshields and hoods of many of them.
08:26:08 <Ysjoelfir> exactly that was the case here. the papers were found from the fire guys. just now they were completely black and sticky as fuck
08:26:39 <Lemon> but I dont understand, it sprayed out of the truck ?
08:26:40 <rust_collector> some years ago, the thing was that the papers were to be in a pocket on the drivers door
08:26:45 <Lemon> to be on windshields
08:27:48 <rust_collector> cars are so low these days
08:28:37 <rust_collector> truck bed tends to be 125cm above ground. it is some kind of standard now
08:28:39 <Ysjoelfir> lemon, immagine 50 buckets of sticky, not (yet) very viscous stuff, bouncing around in the back of a truck with slightly opened taillift. it splattered. just little droplets, but it splattered everywhere.
08:29:13 <Lemon> ho right the truck was moving, I thought it happened when he oppened it
08:29:13 <Ysjoelfir> well, and when he stopped it just oozed out like a waterfall of black goop
08:29:25 <Ysjoelfir> no, he was moving with around 50 kmh
08:30:37 <Ysjoelfir> https://www.google.de/maps/place/Pfeiffstraße+12,+61440+Oberursel+(Taunus)/@50.1925348,8.5873499,161m/data=!3m1!1e3!4m5!3m4!1s0x47bd0801d880be97:0x25ee803f1d89003a!8m2!3d50.1930072!4d8.5870865
08:30:43 <Ysjoelfir> take a look (use sattelite vision)
08:31:07 <Ysjoelfir> and ignore that I now basically showed where I work.... immagine you don't know
08:31:56 <rust_collector> ....store as...
08:31:58 <rust_collector> oh
08:32:54 <Ysjoelfir> he came down that road Pfeiffstraße towards the dead end. where the yellow flat bed truck is, there he had to make a sharp left turn to enter. which he did. bumping over the ~15cm high road / walkway separator stone. without slowing down first
08:33:43 <rust_collector> maybe he did not have much brakes left?
08:34:15 <Ysjoelfir> then he drove fast up to the turning area. the loading zone is basically under that small roof more or less in the middle of the building.
08:34:35 <Ysjoelfir> that could well be the case. that truck looked like crap
08:34:47 <Ysjoelfir> oh, I just noticed that you can see my car on that sattelite picture :D
08:35:37 <rust_collector> yes, I noticed, but I zoomed in, and it was just a normal dumpster
08:35:37 <Ysjoelfir> https://www.google.de/maps/place/50°11'32.1"N+8°35'16.8"E/@50.1922549,8.5874628,193m/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d50.19225!4d8.588 there.
08:36:37 <rust_collector> oh well, time for some coffee, then bed
08:38:07 <rust_collector> good night
08:38:39 <Ysjoelfir> gn8 rusty :)
08:47:53 <Lemon> night rust
08:48:25 <Lemon> hey Ysjoelfir, how hard/expensive would it be to build a 200v/0.5 or 1amp linear supply ?
08:49:10 <Ysjoelfir> depends. with tubes pretty easy, at least the .5A version. if you don't need it down to 0V that is. and if you don't need gread current limiting
08:49:28 <Lemon> ha current limiting would be nice
08:49:40 <Lemon> and variable voltage ofc
08:50:05 <Ysjoelfir> with transistors... also manageable, but a tad harder since there aren't that many high-ish voltage semiconductors left that have linear operation curves
08:50:23 <Lemon> I want to go linear for the noise, mostly
08:50:47 <Ysjoelfir> ah, can you remind me of that question tomorrow when im at work? i have a very nice website open discussion that, very good for beginners, too
08:51:03 <Lemon> ho sure yes
08:51:11 <Lemon> under 100 euros, that seems possible ?
08:52:13 <Ysjoelfir> if you have a suitable transformer and the tubes at hand, absolutely
08:52:33 <Ysjoelfir> or if someone you know with a decent stock is reducing said stock atm...
08:53:07 <Lemon> but cant I use multiple lower voltage transistors ?
08:53:32 <Ysjoelfir> I remember a very interesting thread @EEVBlog where T3sl4 discussed that topic with several people accusing him of being bad to tooobs when he just showed their limitations :D
08:53:32 <EEVBlog> You can get that on the internet now?
08:53:35 <Lemon> lets forget about tubes
08:54:32 <Ysjoelfir> with LV trannys... no, I wouldn't try that. just get proper ones then :)
08:54:44 <Ysjoelfir> they exist, though are sometimes a bit pricey
08:54:45 <Lemon> no but, like 4x50v if it exist
09:12:44 Join: Spark_Ga_ ([email protected]) to #EEVblog
09:14:50 Quit: Spark_Gap ([email protected]) Ping timeout: 121 seconds
09:21:41 Quit: Nothing\ ([email protected]) Quit: Leaving
09:24:01 <EEVBlog> New EEVBlog Retweet: The Amp Hour Podcast: This week @eevblog and @Chris_Gammell talk about carrying your lab with you because of #Coronavirus, conferences going online, parts lists out of Shenzhen, EVs in Australia and more! https://t.co/yF2oJyOMP6 https://t.co/h9wYP4Jznu
09:44:09 <EEVBlog> New EEVBlog Retweet: Jameson Lopp: When you didn't prep because prepping is for the paranoid. https://t.co/mO9SaVG5pq
09:44:59 <Lemon> wtfffff
09:45:07 <Lemon> its a mile long !
09:55:32 Quit: Spark_Ga_ ([email protected]) Ping timeout: 121 seconds
10:00:56 Join: Spark_Gap ([email protected]) to #EEVblog
10:17:53 Quit: Ysjoelfir ([email protected]) Connection closed
10:53:07 Quit: MrMobodies ([email protected]) Ping timeout: 121 seconds
11:00:38 <EEVBlog> New EEVBlog Tweet: Here are two radical ideas @TeamYouTube 1) Just turn the stupid system off for a while. No one is going to die because some videos are a bit "unsafe". or 2) Develop a system that lets the reviewers work from home. You know, like on this new fangled internet thing. https://t.co/HzITscdtlP
11:03:39 <EEVBlog> New EEVBlog Retweet: Photo of the day! :Which was quoting: Reuters: White House #coronavirus task force recommends avoiding social gatherings of more than 10 people https://t.co/DH4gr7jHsh https://t.co/YDuIsg1CDh
11:04:40 <EEVBlog> New EEVBlog Retweet: Evan McMurry: oh my god, the chicago aquarium closed due to coronavirus, so they let the penguins run around and check out the other exhibits. (staff was present.) https://t.co/YGa8CugymE
11:14:01 Quit: Spark_Gap ([email protected]) Connection closed
11:16:56 <Lemon> DHess_US are you there bud ? :>
11:18:37 <Lemon> I have three instruments that got GPIB capabilities, the hp 5345 counter, fluke 8502a DMM, and a tek tds 540 scope
11:18:53 <Lemon> and the siglent 1032X can be connected via usb directly to a computer, if im right
11:19:21 <Lemon> I realize that it would be extra nice, if I can make all those 4 instrument work on my computer, to take various measurements, play with Labview or whatever
11:19:44 <Lemon> do I just need some gpib to usb cables ? that usually cost 70-100 euros (agilent ones are ok ? ) or do I need something different ?
11:23:42 <Lemon> it would be somewhat costly (I can find them at 65 euros on ebay, from china usually, they seem genuine) so 200 euros total, but if it works that could be really nice !
11:23:53 <Lemon> tons of things to learn
11:24:33 <DHess_US> usb to gpib will work fine
11:24:54 <Lemon> https://www.ebay.fr/itm/New-In-Box-HP-Keysight-Agilent-82357B-USB-GPIB-Interface-High-Speed-USB-2-0/192183274642?hash=item2cbf040c92:g:iMkAAOSwaEhZEuUy
11:24:58 <DHess_US> The adapter just needs to work with labview or whatever
11:25:01 <Lemon> here is an example
11:25:24 <DHess_US> I just know it can be done. I'm not familiar with the various options.
11:25:48 <Lemon> ok thanks !
11:26:05 <Lemon> but I mean, the gpib usb cable itself doesnt need to be specific for the instrument ?
11:26:10 <Lemon> its just a liaison, right ?
11:26:21 <Lemon> like agilent cable only works for agilent stuff, ,etcetc
11:26:39 <Lemon> it just translate rougly one 'language' to another, if I can say
11:31:51 <DHess_US> correct, the gpib interface is controlled by the application. Usually the problem is finding one which works with the specific application like python or labview or whatever.
11:32:29 <Lemon> ok nice, well it seems that those cables are ultra popular
11:33:30 <DHess_US> Should be able to chain multiple instruments off of one GPIB interface. GPIB is designed to do that.
11:33:39 <DHess_US> It just requires the cable to do it.
11:34:29 * T3sl4 slaps Ampera with the wrath of a feather
11:34:41 * Ampera hugs T3sl4
11:34:49 <Lemon> it seems theres only usb to gpib cables that are readily available on ebay
11:36:26 <Lemon> when you say chaining multiple instruments on one interface
11:36:55 <Lemon> its say, make one 'program' that uses 3 instruments all connected via usb to my computer ?
11:37:09 <Lemon> sorry im slow, my cat isnt helping by bashing the keyboard randomly
11:39:24 <T3sl4> there's a proprietary command set for the GPIB interface device, so that it can be configured from the same data stream
11:40:01 <Lemon> ok, and I can find each commands in each manuals of my instruments I guess
11:40:15 <Lemon> so to do what I want I just need to find three of the same cable
11:40:20 <Lemon> that works with labview
11:40:34 <mamalala> Lemon: not really
11:40:48 <Lemon> ha, a wild mamalala appears !
11:40:57 <mamalala> gpib is a bus, you have many devices connected to it ... that's why you also have to set an address for each device
11:41:45 <mamalala> if you look at regular gpib bus connectors, they are basically a plug on one side, and a socket at the back, so you stack them to connect to several devices
11:41:51 <Lemon> yeah but, I mean, thats on the software side
11:42:14 <Lemon> https://www.ebay.fr/itm/New-In-Box-HP-Keysight-Agilent-82357B-USB-GPIB-Interface-High-Speed-USB-2-0/192183274642?hash=item2cbf040c92:g:iMkAAOSwaEhZEuUy
11:42:15 <mamalala> no, it's on the hardware side
11:42:20 <T3sl4> presumably that's handled by each individual device and driver, and the common denominator is either a com port or VISA or whatever
11:42:22 <T3sl4> https://en.wikipedia.org/wiki/Virtual_instrument_software_architecture
11:42:23 <Lemon> haa so not those
11:42:24 <mamalala> you set the gpib address on the device itself
11:43:57 <Lemon> ok I saw some of the connectors you said
11:44:08 <Lemon> but the price of a card controller I think would be high no ?
11:44:17 <Lemon> isnt it easier to get three of those agilent usb to gpib cables ?
11:44:51 <mamalala> https://www.ebay.com/itm/IEEE-488-Cable-GPIB-Cable-Metal-Connector-Adapter-Plug-and-Play-1-Year-Warranty/124014789847?hash=item1cdfdb84d7:m:mbvPJFR_e2Ac62P8MigGxEQ
11:45:02 <mamalala> that's what regular gpib/hpib cables look like
11:45:26 <Lemon> haa yeah much cheaper
11:45:34 <Lemon> but I still need some sort of card, right ?
11:45:47 <Lemon> or just one of those gpib/usb cable
11:45:47 <mamalala> yes, you still need some kind of host adapter
11:46:35 <Lemon> like, I chain my instruments with those cables
11:46:38 <mamalala> and which one you want depends on what software you want to use with it... not every software can use every adapter
11:46:40 <mamalala> yes
11:46:41 <T3sl4> if you get an adapter for every device, you have to configure the adapters separately
11:46:42 <Lemon> and one gpib to usb cable on one end to the computer
11:47:04 <Lemon> can it work like this ?
11:47:11 <Lemon> that would be much cheaper
11:47:20 <Lemon> I guess labview is the preffered software
11:47:23 <Lemon> prefered
11:47:23 <mamalala> yes, that's what it originally was intended to be used
11:47:31 <T3sl4> yes, it's a bus, you wire all the instruments together
11:47:38 <Lemon> yeah ok but
11:47:42 <Lemon> to connnect them to my pc
11:47:44 <Lemon> instead of a card
11:47:50 <Lemon> that gpib to usb cable works ?
11:47:56 <Lemon> or its not meant to be used like that
11:48:15 <mamalala> https://www.ebay.com/itm/UGPlus-USB-to-GPIB-Controller-Made-in-USA/172082405115?epid=1776118937&hash=item2810e91efb:g:wpYAAOSwRQlXeez3
11:48:18 <Lemon> https://www.ebay.fr/itm/New-In-Box-HP-Keysight-Agilent-82357B-USB-GPIB-Interface-High-Speed-USB-2-0/192183274642?hash=item2cbf040c92:g:iMkAAOSwaEhZEuUy
11:48:21 <mamalala> that's one of the cheap adapters
11:48:33 <mamalala> but it's anyones guess what software can use it, though
11:48:50 <Lemon> yeah the agilent one is more expensive but a safer bet I think
11:48:54 <Lemon> a lotta people use it
11:49:49 <T3sl4> that's not a bad deal for a brand name adapter
11:50:17 <T3sl4> assuming it still has driver support on win7/10
11:50:22 <Lemon> yeah 65 euros + 3 of those 10 bucks cables
11:51:10 <mamalala> would be interresting to know what stuff they use on the USB side
11:51:29 <mamalala> if the manufacturers would be smart, they would use usb-cdc
11:51:54 <mamalala> but then they couldn't sell that as some special-sauce-stuff to their marketing dept
11:52:18 <mamalala> i mean, just imagine... having a simple device use a simple interface that anyone can easily access :P
11:54:20 <Lemon> heh as long as it sells
11:55:03 <mamalala> well, in the case of things like these gpib adapters, it doesn't really "sell" anyways... it's a small niche device, after all
11:55:51 <mamalala> so instead of making it universally usable, the cobble together some special usb descriptors, so you need some special drivers, that may or may not work on any future operating system
11:56:24 <mamalala> but then... it took microsoft many, many years until they finally enumerated standard cdc devices as what they are, serial devices
11:56:56 <mamalala> i mean, sure, for many years it was using the same usbser.sys driver anyways... it's just that you had to provide an .inf file to actually make it work
11:57:51 <mamalala> there's also the opposite, though... lot's of these usb-serial chips (ftdi, etc.) require a dedicated driver to make them work, instead of using the standard cdc as a default
11:58:01 <Lemon> I admit I never worked with all of this before :>
11:58:45 <mamalala> sure, yes, these chips often provide extra functionality... but it would be trivial to have them behave like a cdc device by default, and have a dedicated driver access a different set of descriptors if one wants that functionality
12:00:12 <Lemon> damn those agilent cables costed 600 bucks+
12:00:15 <Lemon> like, in 2016
12:02:00 <Lemon> if I manage to connect my instruments
12:02:06 <Lemon> and make them communicate with labview
12:02:23 <Lemon> will it be somewhat 'easy' to actually do something, like taking measurements, etc ?
12:02:29 <mamalala> if the price dropped that massively, in such a short amount of time, you better check if you can get current drivers for whatever os you use
12:02:29 <Lemon> or does it needs some heavy programming
12:03:00 <Lemon> well I can still use a VM if its a problem
12:03:01 <mamalala> chances are that they are so cheap because the last driver was for winxp or win7, and doesn't work on win10 anymore ... let alone any other platform
12:03:05 <Lemon> I dont really care
12:03:17 <Lemon> but it seems it works
12:03:53 <mamalala> usually the "protocol" that is used over gpib is rather simple, mostly ASCII
12:04:02 <mamalala> ASCII-based, i mean
12:04:43 <mamalala> like, you literally send text messages to specific device addresses (i.e. your instruments) and tell them what to do
12:05:12 <T3sl4> most commands are plain text, so a terminal is indeed all you need
12:05:22 <Lemon> hmmmm that sounds good
12:05:26 <Lemon> so for 3 instruments
12:05:33 <Lemon> I need two of those 'chain' cables
12:05:37 <Lemon> and one gpib to usb cable
12:05:39 <Lemon> right ?
12:05:50 <mamalala> normally, yes
12:06:29 <T3sl4> yep, or maybe one more cable if you can't fit the adapter on the back of an instrument, but that's it
12:06:53 <Lemon> ha yeah true I have to check if they arent too recessed
12:07:08 <Lemon> that could be a really nice thing, to learn and have some fun
12:07:37 <T3sl4> each device is configured for listening on an independent address, and that should be good to go
12:07:54 <Lemon> https://www.ebay.fr/itm/New-In-Box-HP-Keysight-Agilent-82357B-USB-GPIB-Interface-High-Speed-USB-2-0/192183274642?hash=item2cbf040c92:g:iMkAAOSwaEhZEuUy they look real to you ? I mean, thousands of people are buying them
12:07:58 <Lemon> the paper looks fake af
12:08:07 <coppice_> GPIB people don't care about things like USB-CDC. Its an NI-VISA driver they are looking for
12:08:07 <Lemon> ceryficate, yes sure
12:08:57 <mamalala> well, if you want to be sure buy one of those adapters from NI, for 600+ dollars or so per pop
12:09:22 <Lemon> yeah no thanks ! well as long as they work, I dont really care if they are fake or not
12:09:39 <T3sl4> i have to wonder if NI, prologix and others are seeing sharply reduced sales now that everyone and their dog has a GPIB interface project
12:10:33 <mamalala> T3sl4: probably ... not to mention that new instruments usually have an ethernet port nowdays... what's it called using that... NXI or something?
12:10:58 <mamalala> nah, LXI i think
12:11:02 <T3sl4> yeah
12:11:27 <mamalala> gpib is a dinosaur nowdays
12:11:48 <Lemon> but its so nice to use those old instruments on a computer
12:12:14 <mamalala> Lemon: you could also get a commodore pet ... can talk to your gpib devices, and you have fun with retro-computing at the same time :P
12:12:23 <coppice_> The physical GPIB interface is disappearing, but the logical GPIB interface is strong
12:12:26 <Lemon> dont tempt me too much !
12:21:04 <Lemon> well I'll look more into it tommorow, thanks a lot for the tips guys !
12:21:10 <Lemon> see you soon :> night !
12:21:19 Quit: Lemon ([email protected]) Connection closed
12:49:37 <Ampera> luv u
12:49:37 <T3sl4> owo
12:49:37 <rust_collector> I like this idea: https://crash.co.nz/humour/collection/49.html
12:49:37 <mamalala> rust_collector: i like my idea better... so, screw you :P
12:49:37 <rust_collector> https://crash.co.nz/humour/collection/60.html
12:49:37 <T3sl4> https://i.imgur.com/yt2AqjB.png
12:49:37 <mamalala> T3sl4: the fire background is missing, so it's not fine at all
12:49:37 <T3sl4> the setup to that is, on the other eevblog there's a chatter with something of a cat-bunny personality, so they're always "flopping" on top of something/someone
12:49:37 <T3sl4> so i flop a pancake on them in turn, some times :P
12:49:37 <mamalala> well
12:49:37 <mamalala> the "other" eevblog channel has some crazy stuff, sometimes
12:49:37 <Ampera> mamalala, you have engaged in conversation of a forbidden topic. Hitmen have already been scrambled, you have 10 minutes to live.
12:49:37 <T3sl4> oh no, Halcyon's sending the bird flu to him
12:49:37 <mamalala> Ampera: pff, as if i would care...
12:49:37 <mamalala> Ampera: just promise me to take care of my crazy kitties... then you can let me have only 5 minutes, even
12:50:21 <DHess_US> RIP potatoes, onions, bread, milk, bleach, https://imgur.com/a/ZgiAyIX
12:53:20 <coppice_> good grief. people are so desperate they've even cleared the organic stuff
12:54:07 <DHess_US> coppice_, yea, the expensive organic stuff
13:00:54 <coppice_> I was amused in a local supermarket today. They couldn't get extra tissue, but they could get professionally made signs that say "Maximum 2 per customer" for each of the tissue products they stock
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15:35:05 * Halcyon_Work mews at Ampera
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18:24:14 <Ysjoelfir> hello all
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18:31:55 <hsn93> hello there Ysjoelfir
18:32:10 <Ysjoelfir> hi hsn93
18:32:18 <hsn93> how is u
18:32:41 <Ysjoelfir> great, thanks. the streets are getting emptier day by day. I like that.
18:32:45 <Ysjoelfir> how about u?
18:33:08 <hsn93> doing good .. broke :P
18:34:03 <hsn93> the company made paper = no travel .. if u get quarantined its on you (annual leave)
18:38:16 <hsn93> and annoyed by TI datasheet no osc capacitance specified
18:38:34 <hsn93> in one of their designs they put this helpful sentence (https://snipboard.io/2I3Cis.jpg)
18:39:03 <hsn93> CS is the stray capacitance(device and PCB)this value can be assumed to a few pF as a rule of thumb.
18:39:03 <Ysjoelfir> lol. great.
18:39:10 <hsn93> yeah thanks for that
18:39:11 <hsn93> xD
18:39:35 <Ysjoelfir> yeah, I have seen such sentences :D But it's actually pretty hard to define stray capacitances
18:39:47 <Ysjoelfir> I tried that for my bachelors thesis on some inductors, and failed.
18:40:01 <hsn93> i dont want the pcb one its out of their scope ..
18:44:10 <hsn93> for example for this microcontroller i used before
18:44:11 <hsn93> https://snipboard.io/UuMWzE.jpg
18:44:45 <hsn93> they specify there pin capacitance .. and i add few Cstray 1-2pF ..
18:45:16 <hsn93> i dont know if i should consider this 0pF in TI case ..
18:45:31 <hsn93> and use little higher Cstray like 4pF or somthing
18:47:19 <hsn93> so part of your bechelors thesis was to measure inductor stray capacitance ?
18:52:35 <hsn93> i also got and confusing email
18:52:39 <hsn93> https://snipboard.io/0lnJeG.jpg
18:52:53 <hsn93> i dont know if its because of my order
18:52:55 <hsn93> or what
19:23:48 Join: Lemon ([email protected]) to #EEVblog
19:23:57 <Lemon> hello mah fellows
19:23:58 <Ysjoelfir> Well, depending on your application you should consider stray capacitance. But I doubnt that it is neccessary for a 20MHz application
19:24:21 <Ysjoelfir> hello lemon
19:24:28 <Ysjoelfir> regarding that: [08:47:19] so part of your bechelors thesis was to measure inductor stray capacitance ?
19:24:54 <Ysjoelfir> no, my thesis was about characterising the hysteresis and other nonlinear effects of "high" inductance power inductors
19:25:14 <Ysjoelfir> and finding a measurement procedure to plot that
19:25:38 <Lemon> hey Ysjoelfir ! yesterday night I thought it would be extra cool to connect my fluke, hp counter and tek tds 540 via gpib to my computer, with labview :>
19:25:49 <Ysjoelfir> while working on that I tried to take into account stray capacitance, but that would be very difficult to determine
19:27:00 <Ysjoelfir> and the email hsn93: could well be, as you said they may think that the device is something in that range. but it could also be just a standard mail to reduce corona spread?
19:27:09 <Ysjoelfir> I don't know how bad it is in bahrain
19:27:29 <Ysjoelfir> Lemon: that is a great idea, I want to do that for ages but didn't find the time to set up the PC
19:28:18 <Lemon> yeah I found some gpib to usb agilent cables from china for 65 euros, and gpib stackable cables for 10 bucks or so
19:29:01 <Ysjoelfir> I have a nice dual slot 1 board which I want to populate with dual slot 1 to socket 370 adapters and two 1.4GHz tualatin pentium 3s. sadly I struggle to find the adapters and the p3s
19:29:15 <Ysjoelfir> That will be built into an old powermac case
19:29:18 <Ysjoelfir> the.... erd gen?
19:29:23 <Ysjoelfir> the light blue plastic one
19:29:43 <Ysjoelfir> no, fourth gen was it
19:29:55 <Ysjoelfir> https://upload.wikimedia.org/wikipedia/commons/4/41/GraphiteG4.jpg that one
19:30:31 <Lemon> hehe neat !!
19:33:28 <Lemon> getting a 10Mhz ref for the siglent gen would be nice too
19:33:38 <Lemon> I wonder if it will greatly increase accuracy or not
19:34:04 <Ysjoelfir> that depends heavily on your budget
19:35:15 <Ysjoelfir> usually you use the external references not for just one device, but for every frequency driven device in your lab, so that every device drifts at the same time the same amount in regards to the same reference clock. also, they can be synced pretty easy this way
19:36:40 <Lemon> but to do that
19:36:48 <Lemon> I need multiple ref of the same type ?
19:37:55 <EEVBlog> New EEVBlog Tweet: Delivered today by four armed security guards in an armoured van. #ToiletPaperPanic https://t.co/W5dvgQaOXO
19:41:46 <Ysjoelfir> no
19:41:51 <Ysjoelfir> you need exactly one
19:42:37 <Lemon> and some soft of splitter ?
19:43:16 <hsn93> Ysjoelfir, for sure not related to corona, but maybe not to mail.. i mailed them before regarding duty cycle allowed for ISM band ~870MHz. but still its ISM which means i dont need liscense for it ..
19:43:48 <Ysjoelfir> most of the time, no. many devices that accept a ref in have also a ref out, which is basically just the clock from ref in, buffered. if not... yes, you would need a t coupler
19:44:01 <Ysjoelfir> hsn93 - well... do you expect your government to know that? :D
19:44:26 <Lemon> hmmmm interesting
19:44:27 <hsn93> not really but thats the "wireless authority" ... who else i should go to
19:44:32 <Lemon> a gpsdo could do the trick ?
19:44:32 <Ysjoelfir> I don't know about bahrain, but in germany our minister for healthcare is a banker. he has absolutely no education in medicine whatsoever. so....
19:44:54 <hsn93> our education minister is military guy
19:44:56 <hsn93> xD
19:45:02 <Ysjoelfir> that sounds great
19:46:07 <Lemon> a gpsdo might be better than a rb standard
19:46:10 <Lemon> as it 'correct' itself
19:47:10 <Ysjoelfir> read that, lemon. http://www.reeve.com/Documents/Articles%20Papers/Reeve_10MHzDist.pdf
19:47:17 <Ysjoelfir> could be interesting for you :)
19:47:24 <Ysjoelfir> especially chapter four
19:47:47 <Lemon> thanks a lot im going to take a look
19:52:38 <Ysjoelfir> also lemon: you wanted to remind me when I am at work :P http://www.angelfire.com/electronic/funwithtubes/bench_psu.html
19:53:33 <Lemon> haa yes !! thanks :>
19:54:16 <Ysjoelfir> even though you said "no toobs!"... it's pretty good for a beginner that wants to sniff and probably feel high-ish voltages.
19:54:35 <Ysjoelfir> as it explains the different circuits in more orl ess detail
19:55:08 <Ysjoelfir> and since the operation principle of a tooob is close to that of a FET many things can be translated from semiconductor to glassware
19:55:11 <Ysjoelfir> and vice versa
19:55:35 <T3sl4> main difference is the tube burns out in tens of seconds, or minutes, while the semiconductor dies in milliseconds
19:55:59 <T3sl4> and the semiconductor can carry many times more current, so it's really not practical to make one without current limiting
19:56:06 <Ysjoelfir> exactly
19:56:10 <T3sl4> fortunately, basic current limiting is easy
19:56:33 <Ysjoelfir> IIRC in that website some current limiting methods are explained
19:56:35 <Ysjoelfir> *on
19:56:47 <Ysjoelfir> I rather enjoyed reading it some time ago
20:03:57 <Lemon> im reading the freq one right now
20:04:21 <Lemon> https://www.ebay.com/itm/NEW-10MHz-Sinwave-PLL-GPSDO-GPS-DISCIPLINED-OSCILLATOR-adapter-GPS-ANT/262038924752?hash=item3d02bcadd0:g:ZmsAAOSwkvFafGgr
20:04:24 <Lemon> those things
20:04:32 <Lemon> technically, it correct itself
20:04:38 <Lemon> so theres no drift, well virtually none
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20:20:11 <EEVBlog> New EEVBlog Retweet: fred: @eevblog Got my delivery this morning.. https://t.co/PLR9xbTdWZ
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20:23:55 <Halungormm> rock n roll!
20:24:31 <Lemon> ayeee
20:28:15 <EEVBlog> New EEVBlog Retweet: Hannah Jane Parkinson: we all – and i cannot stress this enough – need this right now. possibly the greatest short film ever made. https://t.co/FzvtrmC70D
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20:36:57 <Lemon> so yeah im going to try getting a gpib/usb cable, two gpib stackable cables, and a freq standard like one of those gpsdo ones
20:37:10 <Lemon> labview sounds like tons of fun and things to learn
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21:19:35 <EEVBlog> New EEVBlog Tweet: Australia is officially rooted. Bunnings have just announced they are stopping the sausage sizzle outside their stores.
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21:45:07 <Lemon> ha nice,s omeone accepted my 5 euros offer for a radiall 3db attenuator
21:45:14 <Lemon> so 9.5 euros total with shipping, still ok
21:57:45 Join: Spark_Gap ([email protected]) to #EEVblog
22:00:24 <Lemon> hey Ysjoelfir, https://www.ebay.fr/itm/Mini-Circuits-Power-Splitter-4-Way-BNC-ZB4P1D-500/303508475877?hash=item46aa83cfe5:g:kPsAAOSwR1FeVNsD this is correct for the freq standard to multiple instruments ?
22:05:10 <hsn93> labview is expensive right?
22:05:14 <Ysjoelfir> I have no idea. As I said, the frequency range I am interested in is more like DC to a few hundred kHz
22:05:20 <Ysjoelfir> It's free for students hsn93
22:05:42 <hsn93> aint we all students ? :P
22:06:30 <Ysjoelfir> I see you get what I'm up to
22:06:41 <Ysjoelfir> as long as you don't use it for commercial use I am totally fine with being a student
22:09:12 <hsn93> yes
22:10:57 <hsn93> just like segger with their https://www.segger.com/products/debug-probes/j-link/models/j-link-edu-mini/
22:11:52 <hsn93> J-Link EDU Mini may only be used for non-commercial purposes.
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22:23:22 <K> hello
22:24:22 <Ysjoelfir> hello k
22:25:05 <Lemon> hello !
22:25:21 <Lemon> I think if I can get a few 1db attenuators, I can cover most used values
22:25:24 <Lemon> by stacking them
22:27:30 <Lemon> I should get the generator on tuesday
22:27:40 <Lemon> thursday ?
22:27:44 <Lemon> I keep switching them up
22:30:17 <hsn93> i think for lower frequencies u can stack them ..
22:30:22 <hsn93> hello K
22:30:22 <EEVBlog> Hello there, hsn93!
22:30:26 <hsn93> jackpot
22:31:49 <Lemon> yeah it will mainly be for my siglent 1032X
22:32:02 <Lemon> or my other gen
22:32:07 <Lemon> gens
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23:11:48 <Ysjoelfir> Tomorrow I'll be testing home office. Not because anyone is sick (but we have one in quarantine), but because our IT guy is smart and wants to try if the home office colaboration stuff works before it is eventually needed^^
23:15:18 <hsn93> what he does ? vpn ?
23:16:12 <Ysjoelfir> yes. VPN to one of our servers that has the access to the licenses
23:20:42 <DHess_US> <Lemon> hey Ysjoelfir, https://www.ebay.fr/itm/Mini-Circuits-Power-Splitter-4-Way-BNC-ZB4P1D-500/303508475877?hash=item46aa83cfe5:g:kPsAAOSwR1FeVNsD this is correct for the freq standard to multiple instruments ?
23:20:45 <DHess_US> Usually no
23:23:55 <Ysjoelfir> would you like to elaborate on that?
23:26:53 <DHess_US> A power divider lowers the signal amplitude so it is very easy to result in a signal which is too small for a frequency reference input.
23:27:15 <DHess_US> Frequency inputs usually require at least TTL levels.
23:27:46 <DHess_US> And frequency outputs usually just meet the TTL specification so dividing causes problems.
23:27:58 <Ysjoelfir> oh. yeah, thats pretty obvious.
23:28:00 <DHess_US> So what is used instead if a distribution amplifier.
23:28:27 <DHess_US> Which may or may not be an amplifier followed by a power divider. Usually it is not.
23:30:48 <hsn93> quick question does people still follow this method of pcb document for output : https://snipboard.io/BCPGHt.jpg
23:31:29 <hsn93> i mean i i just have board bcz the information on the right is just sent with the order to pcb house ..
23:32:37 <Ysjoelfir> at work we still provice the PCB manufacturer with such a document, but I have never seen it being actively requested. For my freelancer work I don't usually provice such a document
23:33:02 <hsn93> or this information is actually for pcb layout engineers before they start routing ?
23:33:36 <hsn93> i see
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