Author Topic: Show your Multimeter!  (Read 337398 times)

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Offline Martin.M

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Re: Show your Multimeter!
« Reply #750 on: February 09, 2017, 04:56:31 am »
Keithley 5900 (is a relabeled DANA 5900 with some cosmetix at the front plate )
this oldie requires 25 to 30 minutes warm up time to find total zero
« Last Edit: February 09, 2017, 05:01:33 am by Martin.M »
 

Offline Martin.M

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Re: Show your Multimeter!
« Reply #751 on: February 11, 2017, 06:19:55 pm »
Grundig RV3 (Classic VTVM)  :)
Grundig 6062 is the same but some little differents
Sennheiser RV55 (also sold as Grundig RV55) is a glowing AC only mV+V Meter with a bandwith of 1 MHz


« Last Edit: February 11, 2017, 06:22:01 pm by Martin.M »
 
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Offline Vtile

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Re: Show your Multimeter!
« Reply #752 on: February 11, 2017, 09:56:51 pm »
What is Zin for those old VTVMs I always wondered (I know it is high, but how high).
 

Offline David Hess

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Re: Show your Multimeter!
« Reply #753 on: February 11, 2017, 11:15:37 pm »
What is Zin for those old VTVMs I always wondered (I know it is high, but how high).

It just depends on the input voltage divider.  Tubes in general do not have a higher input impedance than FETs.  The claim to fame for a VTVM is that it does not have the low input impedance of say a 20,000 ohm/volt analog meter.
 
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Offline Martin.M

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Re: Show your Multimeter!
« Reply #754 on: February 12, 2017, 01:00:27 am »
the RV55 have a 1M 20pF Input, so it likes Probes from Scopes.

Z in, = Sennheiser ZP2  :)

greetings
Martin
 
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Offline Vtile

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Re: Show your Multimeter!
« Reply #755 on: February 12, 2017, 05:11:13 am »
Meratester

My most beloved meter atm. straight from the 70..80's Poland. Have only BNC connection and one banana for grounding. I have two units, another one is in better physical shape, but this one is "spot on" through voltage scales.

As this have 100 Megs input in all DC ranges it is actually a picoammeter also (while nA is as low I have gone so far).  :) What I have found really nice for my odd hobby metering is the center zero selection, which splits the sensitivity range to half (negative and positive).
I wish I had the original "Radio Frequenzy Probe" since the HF button allows measurements up to 1000MHz with it (1.5 - 15V + 250DC max).

Anyway big claims on the "The only meter a laboratory need." isn't too far, really versatile meter and I suppose it is one of the best of the FET analogs there is (outside the big boxy benchmeters / metrology stuff). Also exported under Marconi and Conway brands. Uses hybrid amplifier.

ESD clouds around a room are real!!  ::) ;D
« Last Edit: September 07, 2017, 07:30:30 pm by Vtile »
 
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Offline BU508A

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Re: Show your Multimeter!
« Reply #756 on: February 14, 2017, 08:06:38 am »
Here is my little collection:

Part 1:
- Rohde & Schwarz Nixie Tube DMM UGWD BN 1110 - repaired, needs some calibration
- Keithley DMM 7510 - calibrated Dez. 2015
- HP 34401A - calibrated Oct. 2015
- Fluke 8520A - repaired (some Tantalums had zero Ohms. no good), needs some calibration
- Schlumberger Solartron 7065
- Fluke 3330B (well, this isn't a meter  ;)  ) but my repaired calibrator. Currently I'm working on a more stable reference source for it
- Brymen BM869s, purchased Jan. 2017

Part 2:
- Rohde & Schwarz Vacuum Tube Voltmeter URU BN1080, repaired, needs some calibration
- Rohde & Schwarz Nixie Tube DMM UGD 51

“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 
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Offline Saronni

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Re: Show your Multimeter!
« Reply #757 on: February 26, 2017, 02:23:12 pm »
Here's some pics of my trusty Fluke 75 while it was open for a battery change. A long time ago it was connected across a 12V SLA battery with the probes in the 10A current sockets.
 

Offline Mortymore

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Re: Show your Multimeter!
« Reply #758 on: March 24, 2017, 01:34:51 am »
I recently took a photo of my actual Fluke multimeters family.



Fluke 16
Fluke 111
Fluke 75 series II
Fluke 76
Fluke 83
Fluke 87
Fluke 87 III
Fluke 26 III
Fluke 179

The Fluke 83, still a recovery project, since it needs the LCD screen replaced because it's broken, and some contacts to one of the elastomer can't be done.
But so far, I couldn't find a replacement at a decent price.

 

Offline PointyOintment

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Re: Show your Multimeter!
« Reply #759 on: March 24, 2017, 05:42:21 pm »
I've never even heard of half of those models before! (16, 111, 83, 26)

Offline Wytnucls

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Re: Show your Multimeter!
« Reply #760 on: March 24, 2017, 09:16:13 pm »
Any difference between the Fluke 26 III and 79 III?
If not, why two different references?
 

Offline Mortymore

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Re: Show your Multimeter!
« Reply #761 on: March 26, 2017, 09:09:15 am »
Any difference between the Fluke 26 III and 79 III?
If not, why two different references?

I think there's none. (the manual for both 26III and 79III)
I don't know. I never found an answer to that myself.
 

Offline ModemHead

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Re: Show your Multimeter!
« Reply #762 on: March 27, 2017, 12:15:45 am »
For the original and series-II meters, the 2x models were safety yellow, and the 7x models were gray.  Starting with the series III "tapered" design, they were all the same yellow/gray color scheme.  (The famous Fluke "trade dress".)  I think the only difference was that the 2x models were sold with modular silicone leads instead of the basic TL75 leads.  Maybe a carrying case or other accessories was involved, not sure since I wasn't really paying attention back when these models were new.
 

Offline HighVoltage

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Re: Show your Multimeter!
« Reply #763 on: March 27, 2017, 01:13:19 am »
Here are some pictures of my very first digital multimeter from the early 1980s.
This is "Made in Germany" by ICD
The name is: "Supertester 680D"

It came with the 2 mm Hirschmann posts. The test cables I replaced at a later time with new flexible cables and MC 2mm connectors.
This was an amazingly small and powerful meter at the time.
And it came in this nice case with lid.

There are 3 kinds of people in this world, those who can count and those who can not.
 

Offline HighVoltage

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Re: Show your Multimeter!
« Reply #764 on: March 27, 2017, 02:08:44 am »
Today this old digital "Supertester" got a new battery and I hooked it up to my 10V reference.
Interestingly only one least significant digit in drift after 30+ years.

There are 3 kinds of people in this world, those who can count and those who can not.
 

Online gamalot

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Re: Show your Multimeter!
« Reply #765 on: March 27, 2017, 02:29:38 am »
Advantest TR2114, Keithley 2015, 2000x2, 2001

UNI-T UT33D, Keysight 1253B, 34465A, Fluke 8808A, Agilent 34970Ax2

Now I think I need a 3458A or K2002  :palm:


 

Offline Michiel Sanders

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Re: Show your Multimeter!
« Reply #766 on: March 29, 2017, 04:14:10 am »
Here is my collection of multimeters,

Most of them are from myself, and some are from the company i work for.





Company equipment

Fluke 772 mA Clampmeter
Fluke 1587FC Insulation Multimeter
Fluke 753 Documenting Process Calibrator
Fluke 700DP7 Pressure module
Fluke 376FC Clampmeter with Iflex
Fluke I400 Clampmeter


Private Equipment

Siemens 3RK1904-2AB00 ASi-bus tester and adressing unit
Fluke 189 With BP189 and LockPack for logging
Fluke 183 Multimeter
Fluke 9062 Phase Rotation Checker
fluke PRV240 Proving Unit
Fluke 718Ex Pressure Calibrator
Fluke 87-V Ex Multimeter
Fluke 707Ex mA-Loop Calibrator
Lem MemoBox 602 Voltage Analyzer
Lem MemoBox 603 Three Phase Analyzer

A wide range of test cables and test probes.






personal fluke collection: 8020b, PRV240, 9062, 707Ex, 718Ex 300G, 87-V Ex, 189, lem memobox 602 & 603.
company issued fluke equipment: 2042, Ti10, 376FC, 772, 1587FC, 753.
 

Offline Mortymore

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Re: Show your Multimeter!
« Reply #767 on: March 29, 2017, 08:03:49 pm »
I admire your organization and care with your tools. Everything looks like brand new.  :-+
 

Offline SingedFingers

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Re: Show your Multimeter!
« Reply #768 on: March 29, 2017, 08:38:05 pm »
My little collection of 1980s goodness.

* Fluke 8021B. Bought DOA. Fixed (clean, replace capacitors, calibrate)
* Fluke 8010A. Bought DOA. Fixed (clean, replace display, capacitors, calibrate)
* Fluke 8024B. Bought DOA. Fixed (clean, replace capacitors, replace display, calibrate)
* Philips PM2524. Bought DOA. Fixed (clean, replace capacitors, calibrate)

(there's a theme here)

None cost more than £20 :)



There's a missing DT830 that I'm too embarrassed to show as well. I recently sold my newer meters (!) because I like these so much. I had a Fluke 77 and a Uni-T UT61E as well. Also had a couple of Uni-T 33A's, a couple of Micronta ones as well over the years.
« Last Edit: March 29, 2017, 08:46:45 pm by SingedFingers »
 

Offline lowimpedance

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Re: Show your Multimeter!
« Reply #769 on: March 30, 2017, 10:04:54 am »
My little collection of 1980s goodness.

* Fluke 8021B. Bought DOA. Fixed (clean, replace capacitors, calibrate)
* Fluke 8010A. Bought DOA. Fixed (clean, replace display, capacitors, calibrate)
* Fluke 8024B. Bought DOA. Fixed (clean, replace capacitors, replace display, calibrate)
* Philips PM2524. Bought DOA. Fixed (clean, replace capacitors, calibrate)

(there's a theme here)

None cost more than £20 :)



There's a missing DT830 that I'm too embarrassed to show as well. I recently sold my newer meters (!) because I like these so much. I had a Fluke 77 and a Uni-T UT61E as well. Also had a couple of Uni-T 33A's, a couple of Micronta ones as well over the years.

WHAT !!........you sold your 77  :o :o :o     :( :'(

BTW I do have quite a variety of the 8000 series so I do understand, how ever when I am being escorted to the crematorium my 77 will be firmly gripped in my cold fingers.  :D
The odd multimeter or 2 or 3 or 4...or........can't remember !.
 
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Offline SingedFingers

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Re: Show your Multimeter!
« Reply #770 on: March 30, 2017, 05:47:37 pm »
My 77 had been pretty much destroyed to be honest. It only worked on DC ranges and no attempts to repair it were successful. It had a very hard life before I got it.
 

Offline technix

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Re: Show your Multimeter!
« Reply #771 on: March 31, 2017, 01:26:59 am »
Oh my god your equipment...

I only have made-in-China equipment. :(

* Uni-t UT61D (attached to my computer)
* Uni-t UT61E (also attached to my computer)
* Zhenxing DT-890 (this one needs calibration)
* random brand D830
* And I have a full multimeter kit in my parts bin, I just need to come up with a PCB to turn it into a USB-capable multimeter with 24-bit ADC.
 

Offline Martin.M

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Re: Show your Multimeter!
« Reply #772 on: March 31, 2017, 02:07:12 am »
my Philips, PM2517 E :) (this is the Philips what is sometimes hungry for fresh batteries)
the glowing apparatus is a Tek181 in restoration. (a trustful 20 tubes time mark generator for calibrating old scopes, have inside a crystal oven)


« Last Edit: March 31, 2017, 02:15:22 am by Martin.M »
 
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Offline SingedFingers

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Re: Show your Multimeter!
« Reply #773 on: March 31, 2017, 02:29:23 am »
I've been after one of those Philips handheld units for a while. Never seem to turn up in the UK.
 

Offline HighVoltage

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Re: Show your Multimeter!
« Reply #774 on: March 31, 2017, 06:12:35 am »
I've been after one of those Philips handheld units for a while. Never seem to turn up in the UK.
This series does turn up on ebay Germany from time to time.
Sometimes in really good conditions for a good price too.
http://www.ebay.de/itm/PM2517X-PM-2517X-Philips-Labor-Multimeter-/122416300981?hash=item1c809483b5:g:n1AAAOSw4CFY19Uj

We used them in the University and it was like the ultimate handheld multimeter of its time.

There are 3 kinds of people in this world, those who can count and those who can not.
 


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