Man I hated that stuff! But I'd gladly take it over the epoxy they seal stuff up with today... hehe and find myself using silicone rtv as potting compound for stuff today!
Man, your sense of humor is DRY. I'm used to RU-vid presentations where a clown comes out and hits the host with a pie if they make a joke. Keep up the great work!
That kind of humor is not so uncommon in Germany and is probably what makes many people that are not capable of getting it, give them the reputation of "not being funny"
I understand NOTHING in your videos and haven't for some time but every time you post a new video I stop what I am doing because you make it so fun to watch!
The godlike amount of work that has gone into this video is probably hard to describe. Congratulations on such a good channel. Enjoyed this longer video a lot :)
Marco, your videos are extraordinarily entertaining. All the puns, technical information, and slapstick are a joy to watch. I don't comment much on RU-vid videos, but this one was just grand. Thank you for taking the time to create it.
You know when as a kid you get bored of your toy until your friend plays with it? Yeah, you just made me love again my Fluke 8502A. Same beautiful modular construction, the boards are not just shielded: they have a plastic, VHS-looking case with a door for access to the test points. Thing of beauty!
I absolutely love your videos, you are the one that has brought me to my new job as an "Elektromaschinenbauer" it isn't exactly what you do but it has the right balance between electronics and metalwork for me. Thank you reps! ^^
3 года назад
I don't know why, even if i don't have a clue what he does in these videos, i always find this astonishing. The world of electrical engineering is so captivating...
Ah, there it is: another wonderful video in a long time. Had the thing been given to me, I wouldn't have the slightest idea what to do with it. Even if this thing worked right away. And yet I always enjoy watching and being shown that such devices exist and that there is at least one person in the world who knows what to do with them and who treats them well. Biegelehre.
I immediately thought of "Mr. Bean: The Ultimate Disaster Movie" when I saw the cleaning rag moving towards those frail carbon keypad contacts. Poor Whistler's mother.
I used to use the 5700A in a cal lab back in the early 90's, it was one of my favorite pieces of gear, mostly because of the HP bus that let it be controlled remotely and some cal jobs could be done almost fully automatically, just had to change the setup. I don't recall the name of the controller but it had the cal procedures on 5 1/4 floppy disks.
@@droneforfun5384 its a multifunction calibrator used to calibrate voltmeters and multimeters, can output calibrated voltages both ac and dc, resistances and current also ac and dc.
Also, with regards to your component dismantling, I have gotten a TESLA (not the set-on-fire computer-on-wheels Tesla) BM 566A oscilloscope and in the manual for it, the process of replacing parts goes like this: To prevent damage to the boards, if a component is soldered on (which, fun fact, the transistors and chips aren't, they're socketed), snip off the leads as long as you can and solder the new component on the leads.
No, no complaints on longer duration videos. Wishing you a laser resistance trimmer and a wire bonding machine before your RMS sensor fails. This is the first time i even heard of such a concept of measuring AC. Thank you for showing pinnacle of analogue electronics engineering..
I have a 5100B, haven't turned it on in a while, I'm afraid to. I wish I had the patience you have, but then, 50 years ago I probably did. Love it! Jim
Burning away the problem... in Germany we call it "Freibrennen". When soldering power resistors to a PCB it is better to have a little distance to the PCB for better air flow and keeping the PCB cooler.
The amount of research and knowledge being dropped second by second in a casual and Germanically indifferent way is gorgeous to see and hear. Even some random Counter Strike samples for light comedic relief. This machine has received so much love I'm sure it didn't expect! It would be cool to learn about some of the more "special" or "cared for" IC chips in this product (e.g all the ovenized ones...) what spec/design made them cool, if there is any modern day equivalent that just trumps them, etc. Also what the new cost for this machine might be, what a "fully functional" 2nd hand one one might cost, what your parts expense was for the repair, and what your hours of time invested was. The 35 minutes here as you said still seems shallow for the love invested in this project. It would also be great to hear what typical projects the original owner used this equipment for which made its cost worth it!
I work in a validation lab where we have two of these - one which failed. If you ever have a chance to acquire the amplifier for this unit, it is an amazing piece of equipment itself - increasing output current to 11A.
Wow, this was interesting. I used to use the Transmille 3200B and 3041A Calibrators. Seeing you attempt re-rejuvenation of this Fluke is impressive. Cheers Bud.
I love everything about this teardown and repair. Really appreciate the extra insight into the methods used in this device. The RMS measurement makes so much sense.
In the 60's I remember working on some HP RMS voltmeters. The true way back then to measure RMS was to create heat with the AC signal. Then DC was applied to create the same amount of heat and the RMS voltage was determined from the DC. I can't remember what the module looked like. You pretty much said the same thing, the modules amplified the AC voltage, warmed an element, and the DC was applied to create the same heat. Don't recall, wouldn't be surprised it was in some kind of bridge circuit.
As always, this video of yours was equally enriching and informative as it was entertaining .. I simply love your sense of humor: pure dry German humor, way better than English humor .. extremely hilarious!
I happen to have a set of high quality milli-Ohm shunt resistors for measuring high currents (5A, 25 A, 50A and 100A). They are 1 mOhm, 2 mOhm 4 mOhm and 20 mOhm. Not sure if those could be of any use to you. If so, let me know.
I like your "Der Terminator" approach to solving problems hands-on... although if I had to do the same as you do for my channel, I would need a life-time of sponsoring *grin* I actually expected you to say "I'll be back" at the end of your video, which in turn made me smile throughout :) Wish I had the same capacity for dry German humor... either way, you made an entertaining (long) video, vielen Dank
Marco should be doing standup - I love how he includes his mistake. As brilliant as he is, like all of us, he makes mistakes. Unlike most of us, he actually makes a joke about them. It's admirable.
Just saw this vid on yt sugestions, never heard of you before ) I enjoyed your fascination with English language as much as I did watching you 'find a purpose' for such restoration - "have several multimeters that need calibrating" he-he))
There's a handbuilt wheel encoder like that in an RA1795A RACAL synthesized receiver. It doesn't have a detent though and is heavily weighted so you can 'spin the dial' beautifully.
Those AC oscillator, AC control board and AC output design are based on the older 5200A, it has the same setup (I know I had to fix that... a 19 part video series!) the resistance board is based on the 5450A.
