Author Topic: Show your Multimeter!  (Read 340708 times)

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Offline slurry

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Re: Show your Multimeter!
« Reply #900 on: September 30, 2018, 04:56:15 am »
I've been thrue a lot of handheld multimeters, this is the three most advanced i've got.
Fluke 289 - Keysight U1282A - Metrix MTX3291

The verdict is that the Chauvin Arnoux/Metrix MTX3291 is my favourite for the bench,
second place goes to Fluke 289 (and 17B+ for less demanding work) and the poor Keysight gets place number three  :)
 

Offline ogdento

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Re: Show your Multimeter!
« Reply #901 on: October 05, 2018, 07:10:57 am »
That Chauvin Arnoux meter looks great... I've never seen one and had to look it up.  Great specs!!  it's got everything I'd ever possibly need in a meter.
 

Online Martin.M

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Re: Show your Multimeter!
« Reply #902 on: October 06, 2018, 05:03:48 am »
I have buyed today this ..

Fluke 8300A options 1,2 + 5 (heavy nixie fluke)

 
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Offline Cubdriver

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Re: Show your Multimeter!
« Reply #903 on: October 06, 2018, 11:17:52 am »
Nice, Martin!   :-+ :-+

-Pat
If it jams, force it.  If it breaks, you needed a new one anyway...
 

Offline TERRA Operative

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Re: Show your Multimeter!
« Reply #904 on: October 06, 2018, 04:30:47 pm »
I have buyed today this ..

Fluke 8300A options 1,2 + 5 (heavy nixie fluke)



Oooh, nice. Show us inside!. :)

Also, promise not to turn it into a clock!
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.

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Offline Cubdriver

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Re: Show your Multimeter!
« Reply #905 on: October 06, 2018, 04:37:36 pm »
I have buyed today this ..

Fluke 8300A options 1,2 + 5 (heavy nixie fluke)



Oooh, nice. Show us inside!. :)

Also, promise not to turn it into a clock!

I don't think we need to worry about Martin doing anything like that!  <edit - I mean turn it into a clock>

-Pat
If it jams, force it.  If it breaks, you needed a new one anyway...
 

Offline bitseeker

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Re: Show your Multimeter!
« Reply #906 on: October 07, 2018, 03:31:34 am »
Looks great, Martin! And nice options, too. From the color of the VAC button, I guess it did a lot of it during its life.

I only have its little brother, the 8100A.
You don't acquire TEA. It acquires you.
 

Online Martin.M

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Re: Show your Multimeter!
« Reply #907 on: October 09, 2018, 11:48:56 pm »
the destroying of old test gear is to me a NO GO.
Also I will never answer questions like "how many double triodes are in that Tekscope"

8600A is here, very low series No, it`s a LED. 8300A is my first Nixie-Fluke
Martin
« Last Edit: October 09, 2018, 11:50:59 pm by Martin.M »
 

Online Martin.M

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Re: Show your Multimeter!
« Reply #908 on: October 10, 2018, 01:38:45 am »
 :-/O  no Multi, a Thermo-Meter  8) -60 to +250°C in 4 ranges + analog output 0-1V
trustful 2% of reading. It`s time for a new calibration, the sticker is loosing the color.  :popcorn:
« Last Edit: October 10, 2018, 01:51:26 am by Martin.M »
 

Offline schmitt trigger

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Re: Show your Multimeter!
« Reply #909 on: October 10, 2018, 02:23:48 am »
I recently visited Tokyo's Akihabara district.

There, I found this little analog gem. Brand new, and Made in Japan. As seen from the sales receipt, 4320 Yen.

I had a similar one almost 40 years ago, which I unfortunately lost.
 

Online rsjsouza

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Re: Show your Multimeter!
« Reply #910 on: October 10, 2018, 07:17:03 am »
I recently visited Tokyo's Akihabara district.

There, I found this little analog gem. Brand new, and Made in Japan. As seen from the sales receipt, 4320 Yen.

I had a similar one almost 40 years ago, which I unfortunately lost.
Nice! The slightly older brother Sanwa YX-360TR was the backbone of meters in the 1980's in Brasil. Quite nice little meters.
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Offline malagas_on_fire

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Re: Show your Multimeter!
« Reply #911 on: October 10, 2018, 09:48:44 am »
I remember to see some analog meters back in school, and i belive a sanwa was there,, an  YX-360TR .

Here are the multimeters + portable scope on it's brightness . .. : ( edit  sorry for my sloppy english and there are budgies in the video.. at least the sound of it. ) ,,


The most recent off all is the BM235 EEVeed followed by the uni-t 81b and the anengish :P
« Last Edit: October 13, 2018, 05:57:55 am by malagas_on_fire »
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Online Martin.M

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Re: Show your Multimeter!
« Reply #912 on: October 12, 2018, 08:38:41 pm »
so. Fluke 8300A is on the restoration table, last nixie dont work (no large problem to me), and the power switch is fail.

in the bay was a nice Diff, it will go to me today.  :)



 
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Offline larrybl

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Re: Show your Multimeter!
« Reply #913 on: October 15, 2018, 03:44:03 am »
Here is my old trusty.
 

Offline bsw_m

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Re: Show your Multimeter!
« Reply #914 on: December 21, 2018, 12:29:00 am »
Ex. USSR 6 1/2 multimeter V7-54/2
Base accuracy 0.0015% /year
REF based on zenner 5ppm/1000h class (2S108R).
ADC PWM type, like Solartron ADC.

Design year of this multimeter may be 1989. Production year of this unit- 1992.
« Last Edit: December 21, 2018, 10:43:14 am by bsw_m »
 
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Offline Gyro

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Re: Show your Multimeter!
« Reply #915 on: December 21, 2018, 08:07:58 am »
Quote
ADC PWM type, like Solartron ADC

There certainly seems to be a bit of a Solartron 7150 Plus 'vibe' going on there, display and all.
Chris

"Victor Meldrew, the Crimson Avenger!"
 

Offline bsw_m

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Re: Show your Multimeter!
« Reply #916 on: December 21, 2018, 10:50:51 am »
There certainly seems to be a bit of a Solartron 7150 Plus 'vibe' going on there, display and all.

Certain external similarity is present, but inside this metters is bit more different.
Teardown photos: https://yadi.sk/d/5-LrR75o3WAzsB
And schematic of analog part this metter: https://yadi.sk/d/3vCEklWu3Q9EBr
« Last Edit: December 21, 2018, 10:53:24 am by bsw_m »
 

Offline Inverted18650

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Re: Show your Multimeter!
« Reply #917 on: December 21, 2018, 11:18:26 am »
Fluke 8502A. The last digit of my Fluke 335A is out and that is why we get a six on the end. Otherwise, impressively spot on, and right out of the box from seller "potomacestore" on eBay, just $126 USD delivered! (Not a paid endorsement, but giving them due credit.)
 
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Offline bsw_m

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Re: Show your Multimeter!
« Reply #918 on: December 21, 2018, 11:30:24 am »
Yet another interesting stuff of USSR Metrology: V1-18/1
This is 7 1/2 DC differential voltmeter and DC calibrator with base accuracy 0.001%

Heart of this Voltmeter-calibrator is REF based on two 5ppm/1kHr zenners (2S108R) and PWM multiphase (12 phase) DAC.

Teardown photos of this voltmeter-calibrator here: https://yadi.sk/d/IBVTJWrx3PbyWC

On the first photo this unit on the top "on servicing". Bottom unit is 6 1/2 multimeter V7-39
On second photo this unit acts as calibrator.
« Last Edit: December 21, 2018, 11:47:52 am by bsw_m »
 
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Offline Neomys Sapiens

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Re: Show your Multimeter!
« Reply #919 on: December 21, 2018, 12:43:02 pm »
@bsw_m: indeed interesting. Those are some new instruments here. Especially the latter shows that they did try hard over there too, What is the design date of those?
 
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Offline bsw_m

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Re: Show your Multimeter!
« Reply #920 on: December 21, 2018, 12:53:09 pm »
@bsw_m: indeed interesting. Those are some new instruments here. Especially the latter shows that they did try hard over there too, What is the design date of those?

May be a'm wrong but I think, that V1-18 has designed in early 198X.
V7-39 as far as I know has designed in 1981.


On the photo close-up of V7-39 which measures ultra precision 10kOhm resistor. (sorry, now i can't show teardown photos of V7-39)

V7-39 is 6 1/2 0.01% accuracy
REF on this multimeter based on ovenized 5ppm/kHr zenner 2S190U (9.1V), ADC is multi-slope integrating type.
Last calibration for this unit is 1991 year and I might be lucky, but the check after the repair this unit showed that the instrument is in the class with a large margin and don't need any calibration.
« Last Edit: January 13, 2019, 10:36:56 pm by bsw_m »
 

Offline Neomys Sapiens

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Re: Show your Multimeter!
« Reply #921 on: December 21, 2018, 03:29:00 pm »
Might you have a link to a brochure, datasheet, manual?
 

Offline bsw_m

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Re: Show your Multimeter!
« Reply #922 on: December 21, 2018, 09:30:56 pm »
Might you have a link to a brochure, datasheet, manual?

Yes, technical description, schematic diagrams and other. But information in russian, and cannot online translate :-(

V1-18: https://drive.google.com/folderview?id=1Hl021oci4ZMKQRfx8J-Ea2VC9lMw8Pb7
V7-39: https://yadi.sk/d/0-hW1loTgkoOnA
 


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