Show your Multimeter!

[soldar]

ASMOF, I've got a couple of even older METRIX model 460:

... and even a much older Neuberger Voltmeter from the '30s or early '40s. A true relic!

Those belong in a museum!

[Roehrenonkel]

... and even a much older Neuberger Voltmeter from the '30s or early '40s. A true relic!

Those belong in a museum!

....only out of my cold dead hands.  ;-))
Since these are "Dreheiseninstrumente" moving magnet- (??) instruments one can
use them for AC and DC hence the "stretched" scale.
Also have 8 Multimeters at one GPIB-address (plus DAC and PSU).

Best regards

[EPAIII]

Supreme Model 222!

I want one. I WANT ONE! I WANT ONE!!!

And I promise not to let any of my drool drip on it.

I have the typical 8000 series bench Flukes and a trusty old 77 which I use but I'll bore you with a few unique early meters in my test equipment collection.

Supreme Instruments 1934  model 222 "Multometer".  Back then test equipment was functional art.


This one is just a Continuity Tester but interesting just the same.  It's from the late 1920s.
When a short is detected across the two chrome bars the red dot on the needle moves out of the window on the meter. If the dot does not move the item under test is open.


The Manhattan DC Polarity-Indicator was patented in 1905 and shows polarity in a DC circuit using a liquid in a glass tube that when current is passed through it, the liquid in the negative end turns red. They used a liquid filled glass tube that is in a hard rubber type case with a connector on each end. Electrodes inside the glass tube attach to the connectors. The metal sleeve can be rotated to cover the glass windows when carried in your pocket.

FYI:  They still work!

The Simpson 221 (around 1951) - Interesting as the meter scale mechanically rotates with the range selection knob so you don't read the wrong scale.


If your not bored here's more: http://www.stevenjohnson.com/testers-misc.htm

[soldar]

I found these two old instruments, just the galvanometers which must have belonged in some multimeters.  I am in a bit of a hurry now so I will just post the pictures and comment later. In the meanwhile, any ideas where they might have come from or what each scale measures?

[Sbranky]

Past of a passion/hobby

[Sbranky]

present of a passion/hobby

[shakalnokturn]

The last to join my hoard was a Tektronix DMM 914 but I'm not showing it, nothing too exotic about it.

Instead a photo of one I don't own that tempts me (just for the aesthetics) every time I see one for sale.

[soldar]

Beautiful!

[Edison]

So I'll throw in something too, although it's my own production, but very useful for my needs. Quadruple independent voltmeter +/- 200V with an accuracy of 0.1% and that is absolutely enough for orientation measurements, the idea of its production was born during the repair of a motor card from an industrial CNC and I needed to simultaneously monitor 60 ; 24; +/- 15 and 5V. He also got a job repairing audio equipment, measuring devices, etc.

The protective film has not yet been removed during the tests.