Marco is great because I didn't understand a thing but still watched it until the end.

@vnzandroid

3 жыл бұрын

me too, the only thing i know is it has something to do with multimeter or something with electricity stuff.

@aleksandar4923

3 жыл бұрын

Exactly haha

@JanBabiuchHall

3 жыл бұрын

Hmmm yes I know some of those words

3 жыл бұрын

Same here,,,

@munkybeater

3 жыл бұрын

It seems to run on some form of electricity!

Very nice overview of the Model 2002. After years of making DMMs with 8-bit microprocessors and being limited to a 64 kbyte address space, designing the Model 2001 and 2002 with a Motorola 68K-based processor allowed us to pack them with features. It also allowed for use of the SCPI GPIB commands instead of the previous generation "R2D2" command set (as we used to call it). This is what Marco alluded to with the Model 237. And yes, our analog design team was world class.

@reps

3 жыл бұрын

Hm, this commenters name looks familiar somehow 🔍 04:12 Wow, so glad you liked it! I didn't have a whole lot of time with this demo device, but I'm still hoping to snatch one on eBay one day for a closer look and some tinkering.

@xDevscom_EE

3 жыл бұрын

Nice to see you here, and thank you for your work. 30 years later, and there is still no competition to 2002 in half-rack formfactor. Only sad to see that it's full potential was not utilized like proper support for Keithley 1801, resistance and phase-measurement cards, etc. ;)

@theovannieuwenhuizen5756

3 жыл бұрын

@@reps These instruments are like Kwantum Mechanics. 😂 If possible I'd like to see you cover the DIY build of a digital controlled power supply. Preverably with linked outputs to power precise op amps. My Keysight E36312A is driving me crazy. There seems to be no way to adjust the values linear. Being Volt or Ampere... Any tips on how to properly calibrate this?

Two videos in a month? Something's not right.

@1Borega

3 жыл бұрын

And now no Video for like 4 months... hope everything is all right

@gcr100

3 жыл бұрын

@@1Borega i need videos :o lets hope he is preparing something special

What is this madness? Two videos so close to each other? I approve of this madness.

@4LM3R

3 жыл бұрын

This is addicting

@Stuzakratki

3 жыл бұрын

I Want more!

You know a serious volt-nut when the calibration dates are treated as the absolute and sacred demarcation lines between reliable and a rough estimate that they are. It gived me such a warm and glowing feeling, and makes my heart frolic with joy.

@TMS5100

3 жыл бұрын

volt-nuts is an affliction, and marco has it bad.

@MrMilarepa108

3 жыл бұрын

@@TMS5100 did you misspell religion?

@michaels3003

3 жыл бұрын

Yes, as soon as the date is reached, the instrument uncalibrates itself...

@unkraut7427

3 жыл бұрын

@@michaels3003 The spirit of every 3-year-warranty...

I love that the 2002 has a little credits screen built in. More pieces of test equipment need that.

Wow, ANOTHER video? So soon?! You spoil us rotten, Marco!

0:41 Love it!:p Sometimes I wonder, how many of your references have I missed? Maybe you should post a list of references or something for your videos, and we can have some sort of reference bingo!

@shimmerite_ua

3 жыл бұрын

Double King for the win!

Pro tip: When stacking test equipment 3, 4, or more levels high, it's recommended to spread mortar between the levels to equally distribute the weight downwards.

Too soon. Don't know how to react to this.

2 videos within a year? You're spoiling us!

It’s a miracle!! Two videos within 24 hours! This calls for a celebration! 🎉🎉

@MrMilarepa108

3 жыл бұрын

Yes!!!

@vmiguel1988

3 жыл бұрын

Don’t get used with it!

Man, the fact that tektorinix is your sponsor is a huge flex

The "This Old Tony" of electronics strikes again huh? Thank you so much for the uploads Marco, finally have something to watch again while I'm working where I can learn myself something new

Nice to see you see back, I'm sure restoring that Fluke took some time. Keep up the good work!

Sometimes you can find a cheap ICS GPIB LAN gateway on ebay - found these to be good value and easy to work with. I used Grafana for work all the time and never had the idea to use it for logging mulitmeter output! Thanks for that! Finally there are a bunch of projects that abstract electronics instrument controls. I've been looking at InstrumentKit and PyMeasure amongst others. Worth adding to an existing library rather than building your own!

@tommihommi1

3 жыл бұрын

The (relatively) cheap ProLogix GPIB-Ethernet dongle can go a long way too. It has some annoyances because of the very low end controller and lazy design, but for most applications it should be fine.

What have we done to receive such a gift... TWO marco videos in one week! 2020 has now become worth it.

Tektronix actually visited us today. They had something very sweet to show. The price however were 6 digits. Oof

Is so beautiful seeing all those measuring instruments together

Thanks Marco, again very informative. Your hunt for PPM is inspiring....

maaan, nice integration of various tech, i know this is 3 old video but this is impressive AF

Thank you for the tip on Graphana, that's just the right amount of overkill I'm looking for in my Raspberry pi project.

Well that’s two videos I’ve watched and haven’t a clue what was going on ,great videos 👍🏴󠁧󠁢󠁥󠁮󠁧󠁿

Two videos in one week? Wow, Marco is really getting something done before No-Effort-November hits!

Your videos are so soothing Marco!

I really am amazed at your dedication thanks for sharing. Life is to short for GPIB! Regards Chris

I loved that double king reference on 0:41. Thank you

smart, impressive, entertained and funny. You remind me how far I am in understanding electronics,...

Love seeing you do your thing!

Marco you are spoiling us, but I'm definetely not complaining

holy shit he's back

back to back content. Sick

Great video and I really like that meter! So, for fun I checked the price..just as impressive as the meter.

i needed this. Thank you. Beautiful work

2 videos in quick succession! Back from hibernation

I used to work in a cal lap and we never had those metrology grade q-tips LOL ;)

@kirknelson156

3 жыл бұрын

man I hate type-o's meant cal lab not lap :(

This is cool again. This pico voltage measurement is fascinating & crazy. Temperature measurement with thermocouples is critical, because thermo voltages at the connections. It is always better to use PT100/1000 resistors in a 4 wire installation.

Dont get me wrong, I am always excited when a Marco Reps video comes out, but I am still waiting for the wire EDM machine video.

I like the recess shrouded banana Jacks I made a little box of myself that had a selection of The Binding post and other connectors I can easily plug in If I need it

"In the last Video", YOU have repaired. I just watched. ;)

Very nice, I really need to get into doing gpib.

Too soon Marco, I haven't had time to get over the feelings of inadequacy from your last upload!

Man...I too would like to "dispose" scrap for the PTBadeanstalt :)

Linearity test is not linear enough, it's more of tiltalarity in the plot. :P It's cool that they've added Wayne Goeke to this new K2002 team list. He is the one who designed 3458A's magical ADC and now works for Keithley ;). Hint for future : RJ45 cable is good for nanovolts for DCV measurements, but not good for resistance as its isolation is not that good. For high-ohm resistance best to use gray-beard approved PTFE-insulated cables. As of NPLC, K2001 have max 10 NPLC, while 2002 can do 50 NPLC ;)

@reps

3 жыл бұрын

Is 50 NPLC recommended? I'm not quite sure if I tried with 2002, but I remember getting a lot of noise from Advantest R6581T with higher NPLC settings

@xDevscom_EE

3 жыл бұрын

@@reps Depends. :) It can be helpful for high resistances, but for DCV I didn't see much difference on my 2002's noise-wise on NPLC 10 vs NPLC50.

0:42 DOUBLE KING REFERENCE 🤴 🙌 Felix will be happy 🤣

@reps

3 жыл бұрын

Think he's a voltnut? :)

@CY2K24

3 жыл бұрын

@@reps you never know he could be😅

@CY2K24

3 жыл бұрын

@@reps love your videos by the way , keep it up 👍👍👍

The qtips are a great idea!

Thanks for the clarification . My question in the video clip 5.57 is the two devices of the same model number Keithley 2002. And since you mentioned previously, the accuracy reaches the nanovolt, assuming the two devices are of the same version, why is the difference in reading the 10 volt?

Wow so many videos! Where did you find the secret time fortune?

I miss my 5700A and the keithie plus the oven control gps govern rebium clock.

Hi! At first I want to say that I realy enjoy watching your videos and content. The second thing on my list is a question: do you know where I can get such Solartron input cables? I got an 7075 cheap on eBay, but it apparently came without the input leads... A quick search on the internet told me that it has a special Fisher connector. I didn't asked there customer service, but I believe an original replacement part would cost me a fortune, so I'm curious where you got yous or if you know where i could possibly get one. Thanks!

Thanks very interesting you weren’t joking about the Qtip LOL.

can really get used to that upload schedule. hows the osmu coming along?

I grew up with Fluke Calibration Equipment, 335D, 332A, 5100B, 5101B, 5102B, 5200A, 5440B, 5700A Fluke Calibration Equipment is very well made, Fluke early Calibration Equipment before 5700A is quite easy, not that many specialised components, 5700A you did very well getting that given to you, pity about that burnt PCB, but I suppose if one wanted, you could get a PCB manufacturer to make another for you, Vishay make specialised resistance networks, if any are on there way out, Caddock also make resistance networks, what I will say I do hope Fluke supply a proper service manual for the NEW range of Calibration equipment, not just a block diagram & PCB change, that to me would be off-putting, Again you did a very good job, those Components must have cost a lot of money 💰, but in the end you have a Very Good Fluke 5700A Calibrator that will no doubt last another 30 years 👍 👏

Does anyone have a part number for those spring loaded banana plugs used with the platinum sensor at 5:43

I have an allergy for the neurotoxins/hormone disruptors coming from warm electronics, mainly fire retardants. If you have a lot you should consider building an air duckt at the back to draw the air out of your home.. I have to do that with my PC

DOUBLE KING ! :D :D Nice equipment

what's that software you use that simulates the circuit e.g on 2:55 ?

Why do I always Think of him when I make the tool control and see a Biegelehre in the Workshop at my Scholl ;)

What is your day job @Marco? Where you have to deal with 0.5 nano volts on a regular basis 🤔

@dangermaus4084

3 жыл бұрын

Electron Rancher.

Perhaps the Keithley 2002 is super precise and has very low error count, but freeze frame @7:05 and you can spot a spelling mistake in the word "measurement" on the display. Perhaps it could be mentioned to Tektronix?

I just want to know what logging software this is?

Nice Double King reference... Also, the Bench Stack is starting to approach sci fi B movie backdrop levels of madness.

Have you checked which way fan on 2002 is blowing? In or out? I'm getting conflicting reports...

Marco can you make a video on repairing fluke 199 Scopemeter, Thanks

I really don't understand GPIB interface prices. It seems the cheapest interfaces are basically a GPIB connector with some free electronics in terms of BOM cost, and then the price starts going up from there with no end in sight.

@reps

3 жыл бұрын

The fake NI ones for around 100 bucks work well enough for me. Original NI ones are made much nicer and they can be faster if needed I think, thanks to their custom ASIC

Sponsored by Tektronics is like winning the Nobel for instrumentation. Did you get the cotton swabs from the nearest covid test center? :)

@abpc1x905

3 жыл бұрын

Those "metrology q-tips" are special order from Johnson & Johnson. Shipment requires a stop over at NIST for certificate.

@reps

3 жыл бұрын

Yeah, only used briefly (:

@theovannieuwenhuizen5756

3 жыл бұрын

@@reps Who said Germans lack a sense of humour? 😂 Albeit bordering on morbid 🤪

Hello brother, I just bought a Rofin Sinar Diode Laser Dilas M1F2S22-976.2-130C-IS34.2MO but I don’t know what is the best power supply to run it, and I didn’t find anyone else interested in the field, so can you help me in choosing the power supply

I see Keithly, I see meme man, it will be a great video... PS: you should check some GDR measurement equipent, I own a few präcitronic devices, they are built rather well. Robotron also made some great devices, at least when you consider how bad the GDR economy was. Of course nothing compared to Keithly, Agilent etc.

Do the Keithley 2000, 2001and 2002 have the same user Interface, functions and communication over GPIB or are they all a bit different?

@reps

3 жыл бұрын

2000 is a bit different, 2001 and 2002 are almost identical in terms of UI and coms

whoa. that was quick.. another german electronic humour.

I think 2002 and 2001 have pretty much identical cooling setup. The only difference I see is a small shroud thingy. Maybe that allowed them to use a slower, quieter fan.

What software do you use in the video?

Ich habe auf Arbeit mehrere der Prologix GPIB-Ethernet Adapter in Verwendung. Funktionieren astrein und sind preislich akzeptabel 👍

@tommihommi1

3 жыл бұрын

Haben aber ein paar Eigenarten. DHCP funktioniert nicht zuverlässig, und wenn man sie z.B anpingt, kommen immer zwei responses zurück.

@falkorieger1059

3 жыл бұрын

@@tommihommi1 DHCP ist in meinen Augen eh generell eine schlechte Idee bei fest eingebundenen Geräten...

@tommihommi1

3 жыл бұрын

@@falkorieger1059 Wenn auf den Geräten DHCP läuft, hat man viel mehr Möglichkeiten. Die IPs sollte man natürlich trotzdem statisch vergeben, aber eben zentral verwaltet anstatt auf jedem Gerät einzeln, weil so die Einrichtung viel komfortabler ist, sobald man ne größere Menge Geräte hat. Auch ne schöne Option, falls die Geräe öfter ausgetauscht werden, ist, die IPs statisch den Ports am Switch zuzuweisen und an die Buchsen an den Arbeitsplätzen Label zu kleben. Wenigstens funktionieren sollte DHCP, damit die initiale Einrichtung glatt läuft.

HOW DO U MAKE THOSE SIMULATIONS!!!!!

what's the comedy-sized (crimp?) connector at 8:55 from?

@reps

3 жыл бұрын

from twitter.com/GigaBecquerel

👍 well done

How did you make the graph from minute 3:20?

@arefsharif

3 жыл бұрын

Grafana, last one mentioned in the description

Frowned my eyebrows when I saw the pliers, smiled when I saw the hammer, burst out laughing with the angle grinder. I love you Marco

Grafana + InfluxDB + Telegraf =

I sometimes really scratch my head where the hell do electronics youtubers get such expensive equipment from, does youtube really pay that well Like oh look at this cool test gear piece, **looks up on ebay** oh it costs like a new car, ok

@reps

3 жыл бұрын

I just don't smoke, gamble, drink, eat meat, go on holidays, wear fancy clothes or have any kind of fun other than test equipment :)

@Ikkepop

3 жыл бұрын

@@reps oh yeah I guess it helps.not having a family to feed

Do you get to keep that keithley? That’s quite a hefty pay day for just one sponsored video. Congrats on that!

I have seen some Arduino-GPIB projects around, there are several in github actually. if you are not expecting to do fast acquisitions, probably they would do the trick. I did not test any so far.

Pretty interesting, dude!!! The Raspberry Pi application looks awesome! Stay safe there with your family! 🖖😊

Whats the software called which you use to demonstrate the ADC at 2:23?

@ofgjf

3 жыл бұрын

falstad.com/circuit/circuitjs.html

@Schmogel92

3 жыл бұрын

It's the "K2002 ADC simulation" link in the video description

While not super cheap, sparkfun sells a prologix GPIB-Ethernet host for $200USD. Cheaper than the keysight one at least!

2 videos in a week! Is it Christmas already?

I don't understand why that GPIB to Ethernet converter has an FPGA on it...any decent microcontroller with ethernet should be enough. Unless there is some advanced functionality I'm missing (like being able to put your own bitstreams on the FPGA)

@dieSpinnt

3 жыл бұрын

Maybe bandwidth. And the ease of changing the circuitry/updating functionality for a ton of existing devices. The fact this thing isn't produced anymore reminds me of an unsuccessful prototype. Just speculation. AND I WANT ONE, TOO! hehe:) Found a similar device: www.antratek.de/prologix-gpib-ethernet-controller prologix.biz/gpib-ethernet-controller.html Have a look at the FAQ and PDF manual. It may answer some questions.

What software were you using for your simulation please?

@transfunktionator

3 жыл бұрын

I think he is using the one at www.falstad.com/circuit/

Great. What type is the GBIP adapter (even if not available anymore)? Thnx.

@reps

3 жыл бұрын

TAMS L488

@gerhardwiesinger

3 жыл бұрын

@@reps Thnx. What price range?

@ofgjf

3 жыл бұрын

@@gerhardwiesinger 80 € There is a seller on ebay that sold a few of them. Maybe he will sell another one in the future.

what? Marco uploading two days in a row? What is this sorcery?

You seem to have a Fritz!Box to calibrate as well. Where do you store all these precious PPMs?

@reps

3 жыл бұрын

Well, ideally they remain in the devices. If they escape, they need costly refill at a national metrology institute :L

Hey Marco what engineering applications require voltage/current accuracy in the nano range?

@KieranShort

3 жыл бұрын

The CERN large hadron collider

@markgreco1962

3 жыл бұрын

Dollar tree solar lights?

@MrMilarepa108

3 жыл бұрын

ALL THE THINGS

@reps

3 жыл бұрын

@@snarkylive already got one, no basement needed :) it's just a tube filled with helium-3

@ulwur

3 жыл бұрын

Nobody needs them nanovolts, but when when the volt-nut bug bites there's no rescue. It starts innocently with handheld dmm's. Then the volt-nut bitten discovers eBay, and it's all downhill from there. They usually ends up as graybeard virgins in national cal labs, fighting for grants for trips to bipm or nist.

2 videos in one quarter?

fabulous slow TV for me. Real nerd stuff - more!!!

Sure, your metrology tech is pretty cool, but I just want to know what kind of switches you are using on your clicky keyboard with the RasPad. They sound like Kailh "box" clickbar switches, but I might be wrong.

@reps

3 жыл бұрын

It's some off-the-shelf Razer keyboard. its -key is broken :(

@willkern6

3 жыл бұрын

@@reps Aha! Razer green switches are also click bar switches so the similar sound makes sense. If you need to repair the -key, I don't know if you can buy individual razer switches but Kailh (Kaihua) makes a bunch of very good clickbar switches. The closest replacement for a razer green would probably be a Kailh Box White, but there are also many other options with heavier springs and thicker clickbars if you wanted to build your own custom keyboard. Also, if you ever did decide to make a custom keyboard, please be sure to make a video ;D EDIT: I just looked it up and I was wrong about the internals of the Razer switches - they ARE made by Kaihua, but they have a different mechanism than the other ones made by Kaihua. Also still no luck on finding replacement Razer switches. I think they only come in complete keyboards.

Drinking from a firehouse again. I'm happy to get 50% of this.

2 Video's in as many days!? Is it Christmas!?

What another video already, well thats a like already! PS: and it was informative, to bad I cant double like!

Wha That was quick

You can tell which of his instruments have multiplexed displays with his camera.