Author Topic: Show your Multimeter!  (Read 369960 times)

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Offline SLJ

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Re: Show your Multimeter!
« Reply #225 on: November 11, 2012, 04:06:13 am »
Here's another old one. The 1929 Supreme Diagnometer:



AC volts, DC volts, Milliamps
Capacitor (then called condensers) tester
RF signal generator (note the unique external transmitting coil on the left)
One of the first mutual conductance tube testers
Capable of tube matching and tube "rejuvenating"
Also the first Dim Bulb Tester (lamp in series to take the current in case of a short)
All in a nice portable case for the serviceman with lots of room for tubes (the first tube caddy?), and compartments for adapters, and tools.

Here's more of my Diagnometers:  http://www.supremeinstruments.org/diagnometers.htm
« Last Edit: November 11, 2012, 04:12:22 am by SLJ »
 

Offline T4P

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Re: Show your Multimeter!
« Reply #226 on: November 11, 2012, 05:02:34 am »
Nice!..... I am still having a look if they will buy and replace some of our old Psychrometers, so that I could grab one...

T4P, has is a logging mode or sth. like that? I often used my U1272A as Thermometer within the last few weeks when we measured at night. A reasonable Thermometer would be useful ;).
It's not a logger ... Loggers are expensive  |O But i am buying one USB thermocouple interface that can log apparently from DX
What i like about is clearly not the paper board inside (My eyes couldn't believe what i was seeing) but is that it's got MIN/AVG/MAX, Hold and obviously T1 - T2 (- as in minus)
« Last Edit: November 11, 2012, 05:04:38 am by T4P »
 

Offline quarks

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Re: Show your Multimeter!
« Reply #227 on: November 11, 2012, 01:55:26 pm »
Here is a quick shot of most of my meters.
 

Offline PA4TIM

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Re: Show your Multimeter!
« Reply #228 on: November 11, 2012, 02:42:44 pm »
Nice Fluke 720, this s mine:

www.pa4tim.nl my collection measurement gear and experiments Also lots of info about network analyse
www.schneiderelectronicsrepair.nl  repair of test and calibration equipment
https://www.youtube.com/user/pa4tim my youtube channel
 

Offline quarks

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Re: Show your Multimeter!
« Reply #229 on: November 11, 2012, 03:11:47 pm »
 Your 720 is looking very nice, and I just realize that my picture is really bad and blurry looking. Next time I try to do better. But nevertheless the 720A is fantastic gear. And inside its even nicer than from the outside.
 

Offline robrenz

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Re: Show your Multimeter!
« Reply #230 on: November 11, 2012, 03:33:57 pm »
Love that 8846A  ;D  you have a 48gx also,  that must make us soul mates  ::)

Offline quarks

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Re: Show your Multimeter!
« Reply #231 on: November 11, 2012, 03:53:12 pm »
Quote
Love that 8846A    you have a 48gx also,  that must make us soul mates 
We are for sure soul mates, because I am a "Real EE, wannabe machinist" :).  I would love to be able to make Kelvin probes like you.
I am really a big fan of your work and hope to see more soon!!!

BTW my 8846A is only a "cheap" Tektronix DMM 4050, but identical to the Fluke.
« Last Edit: November 13, 2012, 12:33:46 pm by quarks »
 

Offline lee_t

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Re: Show your Multimeter!
« Reply #232 on: November 12, 2012, 01:18:57 pm »
My first Fluke Multimeter... :)
 

Offline steve30

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Re: Show your Multimeter!
« Reply #233 on: November 17, 2012, 09:06:16 pm »
Here's another one of mine.

Unfortunately the movement broke :(.
 

Offline oldrose

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Re: Show your Multimeter!
« Reply #234 on: November 19, 2012, 06:52:58 am »
My current collection in purchase history order from left to right. The Fluke 87V on the right speaks for itself and is worth the $ spend of you can afford it. The Triplett 2202 has remained the most used meter because it is accurate (though not with high precision) small, stable on its tilting bail and has a better display than even the Fluke. The Radio Shack I bought because it was the first one I'd seen with logging software although I've never used the capability. It's an inaccurate PoS and the probe connections are completely useless. The Digitech analog was purchased to measure pulses and replaced a similarly cheap analog meter that broke after 10 years. I would not recommend it at all but I needed the pulse capability on a Sunday afternoon, the supplied probes broke within 2 uses and it won't accept any shrouded plugs.
 

Offline ablacon64

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Re: Show your Multimeter!
« Reply #235 on: November 20, 2012, 01:21:19 am »
oldrose, doe that analog come with that yellow rubber/plastic protection?
 

Offline SLJ

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Re: Show your Multimeter!
« Reply #236 on: November 20, 2012, 01:50:47 am »


OK, what I actually use on the bench.  My trusty old hand held Fluke 75, an analog Hickok FET VOM, two Fluke 8000 series meters (most used), and a vintage RCA Vacuum Tube volt meter.
I also have a Tek DMM plug-in in a small Tek rack and a DMM built into my Tektronix 465 scope but I don't use them as often.

Offline oldrose

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Re: Show your Multimeter!
« Reply #237 on: November 20, 2012, 07:33:52 am »
oldrose, doe that analog come with that yellow rubber/plastic protection?

Yes, it's removable just like the fluke and that's the only similarity
 

Offline Fsck

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Re: Show your Multimeter!
« Reply #238 on: November 21, 2012, 08:22:49 am »
My babies.
Fluke 8842a with 05 and 09 options.
Fluke 87-5
"This is a one line proof...if we start sufficiently far to the left."
 

Offline PA4TIM

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Re: Show your Multimeter!
« Reply #239 on: December 06, 2012, 10:27:44 pm »
My Fluke 720 was not so nice inside. All the isolators and deckrotor connectors were broken. I made new ones from teflon on my lath and mill.

Not mine, but I restored it for a friend:
www.pa4tim.nl my collection measurement gear and experiments Also lots of info about network analyse
www.schneiderelectronicsrepair.nl  repair of test and calibration equipment
https://www.youtube.com/user/pa4tim my youtube channel
 

Offline TorqueRanger

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Re: Show your Multimeter!
« Reply #240 on: December 06, 2012, 11:38:45 pm »
Here is my poor excuse for a meter

 

alm

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Re: Show your Multimeter!
« Reply #241 on: December 07, 2012, 12:23:15 am »
You better not use that meter near mains circuits, I doubt that tape is rated for mains voltages ;). The battery terminals are directly connected to one of the test leads. Not that it would have been safe even with the original battery cover.
 

Offline jamesp15

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Re: Show your Multimeter!
« Reply #242 on: December 07, 2012, 12:31:46 am »
Might as well post my collection of meters..
Well most of it, used to have 4 of the u1272a's, but sold off 1 and gave another away (disappointed with them overall, hate the test leads that came with and dont like the update rate of the screen (too fast, yes too fast.) and the dont like the data logging compared to the fluke 289, just all around dont care for them.  also have a few old analog meters and another 87v that I keep in my mobile toolbag.  The micronta was my first "real" multimeter that I bought in the early 90's, still reads dead on accurate today.


 

Offline robrenz

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Re: Show your Multimeter!
« Reply #243 on: December 07, 2012, 12:47:49 am »
love that 8846A  :-+

Offline FenderBender

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Re: Show your Multimeter!
« Reply #244 on: December 07, 2012, 01:28:14 am »
Quite a bit of $ you got sitting on your desk there! They should last you a very long time though...as I'm sure you know.  :P
 

Offline steve30

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Re: Show your Multimeter!
« Reply #245 on: December 07, 2012, 05:50:34 pm »
My Fluke 720 was not so nice inside. All the isolators and deckrotor connectors were broken. I made new ones from teflon on my lath and mill.

Not mine, but I restored it for a friend:
<snip>

Cool Avo. What's its accuracy like?
 

Offline PA4TIM

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Re: Show your Multimeter!
« Reply #246 on: December 07, 2012, 06:00:29 pm »
I do not know anymore, those AVOs are only to calibrate by replacing parts. My own AVO 8 is also not very accurate ( except for current) but within specs. But most analoge meters are not great in accuracy if you are used to 6,5 digit meters  :-DD

The meter is braille and my friend is blind so precision is no point. You measure, then clamp the meter by moving the lever to the right until you feel the resistance from the needle ( very clever made). Then he reads with fingers the value so that is not even close to reading it using the knife needle and mirror scale. So i did not bother to calibrate it. It was good enough for the purpose and on most ranges within or close to specs.
www.pa4tim.nl my collection measurement gear and experiments Also lots of info about network analyse
www.schneiderelectronicsrepair.nl  repair of test and calibration equipment
https://www.youtube.com/user/pa4tim my youtube channel
 

Offline grenert

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Re: Show your Multimeter!
« Reply #247 on: December 07, 2012, 06:22:55 pm »
The micronta was my first "real" multimeter that I bought in the early 90's, still reads dead on accurate today.

Some of the old Radio Shack meters were made in Korea by a company called Metex.  They seemed to be pretty good value back then.  It looks like the company is (barely) still around:
http://www.metex.co.kr/viewgroup_e.html
 

Offline mianchen

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Re: Show your Multimeter!
« Reply #248 on: December 09, 2012, 05:12:03 pm »
Just found this thread when searching for something I was looking on eBay - I feel that I should post my multimeters too.

1. HP3468A, got it off eBay for £60 incl postage.
2. VC97.
3. VC99, bought these two off eBay too. Both work fine for my hobbyist needs, £50 for both VC97 and 99.
4. DT-830B, I knew it was gonna be a piece of crap, but I still bought it to find out 'how bad can a dirt cheap DMM be', this one was £4.99 free post. It was CRAP, I had to ditch the test probes and solder a pair of leads to it -  the sockets have a thick layer of oxidised copper and the probes were flimsy. Well, for less than a fiver, I can't ask for too much.

...



New additions to the bench:

  • Russian U4341 analogue meter
  • My first FLUKE!  :-DMM Picked this 87 III up as a 'second chance offer' from eBay (~£80 :-DD), only needed a bit of clean
  • Every man and his dog here have one, I bought one too from DD for ~£35 before their price gone up

Gave an el cheapo VC97 away to a friend
« Last Edit: December 09, 2012, 05:13:36 pm by mianchen »
 

Offline G7PSK

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Re: Show your Multimeter!
« Reply #249 on: December 09, 2012, 09:47:10 pm »
My Fluke 720 was not so nice inside. All the isolators and deckrotor connectors were broken. I made new ones from teflon on my lath and mill.

Not mine, but I restored it for a friend:


Is that AVO set up for a blind person, That looks like Braille on the additional top scale. If so how does it work.
 


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