Test Equipment Anonymous

Look closely at the ones near the end with the red and black wires - they're solid on the male edge connector - you'll need to slice the fingers/pads lengthwise to separate them. Those pads are siamesed on both sides on mine. https://photos.smugmug.com/Electronics/Misc-test-equipment/i-BRZKvZS/0/LH6...

As long as you split the siamesed pads, why do you think the JAMMA cable would need extensive rework? As long as all the connections are 1:1, it should effectively be invisible to the plug in. And why remove the unused cables? If they're no connects, they won't hurt anything, and the TM-500 equipmen...

Nixies? What are those? IMG_20250514_174741361.jpg Contemporaries/successors of these: ;) https://photos.smugmug.com/Electronics/Non-Linear-Systems-Model-64-DVM/i-cFWRX39/0/LLtNW9gMp4WSKN4GdrZdmzvXrDDS9zwV8LDp5KfRv/XL/NLS%2064%20display%20working%20-XL.jpg I have a timer lurking about here somewher...

MED6753 wrote: ↑Tue May 13, 2025 5:46 pm You guys kill me. Suggesting I go down all sorts of rabbit holes.
...

Well, this is the TEA forum... <whistling>

Have you forgotten that being enablers is part of our charter?

-Pat

Hey Mike - if you want to get the correct counter to calibrate your square wave generator, there's one on The Bay of Evil now! https://www.ebay.com/itm/306299652398?_skw=hp+524+nixie&epid=19064607187&itmmeta=01JV5BA7JF33H4JGDMAE4TY854&hash=item4750e1c92e:g:W8cAAeSwmIdoImXB&itmprp=enc...

The ones you can usually tell on are the old black tubular Sprague caps with the yellow or red lettering (can't recall the series off the top of my head). Yellow print means paper, they'll have become resistors. Red print means difilm; those are normally ok. The way I remember it is think like traff...

The first 5245L was my gateway drug and what really began this slide into test equipment collecting insanity...


-Pat

Mike, IIRC my 523D was working when last I powered it up - want to borrow it? ;) https://photos.smugmug.com/Electronics/HP-523D-Electronic-Counter/i-NcvQQdn/0/LT68vGN2VDjgbWq9WsJNNb9jhF63mL96ZKCWhTWv4/XL/HP%20523D%20front%20view-XL.jpg https://photos.smugmug.com/Electronics/HP-523D-Electronic-Counte...

I haven't used the one I got yet, so I haven't gone through it, but the main thing I'm aware of is that you need to slice the siamesed pads on the end of the male connector where the pairs of black and red wires attach to make the connections separate, and the other thing I'd do is check the connect...

MED6753 wrote: ↑Fri Apr 25, 2025 7:28 pm

Cubdriver wrote: ↑Fri Apr 25, 2025 7:07 pm

MED6753 wrote: ↑Fri Apr 25, 2025 6:06 pm Screw you, I'll sleep up here instead.

Turn this thing on! Bench meters are supposed to be left powered up to stay warm and in calibration!!!

I'll send you my electric bill.

Charge Harley!! HE'S the one who wants it turned on!!

MED6753 wrote: ↑Fri Apr 25, 2025 6:06 pm Screw you, I'll sleep up here instead.

Turn this thing on! Bench meters are supposed to be left powered up to stay warm and in calibration!!!

Glad to see your replacement meter came, and even more importantly was still there when you got home. You'd think it would be common sense as a delivery person to put a package in at least a somewhat inconspicuous spot if possible. Obviously, I expect too much from people, as common sense is a horri...

I got a shipping notification today, so I should have them by early next week - they're coming from the left coast via USPS. I'll post pics and let you know what I think when I get them.

-Pat

That meter looks like it cleaned up really nicely. Do you know of a source of pin plug test leads? I have two meters that use them but no leads. I was going to try test fitting a mini-banana plug connector into a pin socket and see if it fits and is workable but haven't had a chance yet. IIRC Probe...

Last I needed a 15V one for a VOM I found them ridiculously expensive so made my own from a stack of LR44 button cells held together with heatshrink and a short length of brass tube to make up the length shortfall. Or are the 22.5V a different arrangement ? 2x 12V remote batteries and a diode or 2 ...

It's funny how what you're used to can completely color your perception of things. I have a private pilot ticket, and spent quite a few years in the 80s/90s flying around here in the northeastern U.S. In summer it gets hazy. VERY hazy. Like five miles of visibility aloft is a good VFR day hazy. I wa...

The 635HV is another I'd never heard of - just looked it up - wow, 6 kV! Are the HV ranges just additional voltage dividers that you plug into and select a lower voltage range using the selector knob, or? (It's not obvious from looking at the pics I found online.) I do have a Simpson 269, but need t...

Interesting - that's the first I've ever heard or seen of them. Fortunately, I don't have a 260 - used Triplett 630s in HS and so developed an affinity to that breed. Hunted one down years ago; it's buried around here somewhere. Good luck in chasing down the rest of them - that'll be a cool collecti...

Such is the perverse way of the world, that if you have a really nice piece if HP kit that ought to have one, it may well have dropped off, but if you have a piece of junk where the only recoverable thing is the badge, it will be impossible to remove it without damaging it. Apparently one of Murphy...

Beaker and Nixie:


-Pat

Somewhere in the æther there is a pocket that's full of old style Clement cabinet feet and those tiny badges, as they so frequently are missing...

-Pat

Buuuug!!!

Nope - Sprague 30D is an al-yoo-minyum cap.

-Pat

BU508A wrote: ↑Mon Mar 17, 2025 8:55 am

Cubdriver wrote: ↑Sun Mar 16, 2025 7:44 pm I have a bad feeling you're going to be costing me a bunch of $$!!

-Pat

I'm really sorry.

Yeah, I can see that... /sarc



-Pat