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Old 24th Jul 2007, 10:52 pm   #221
Station X
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Default Re: AVO Multimeter survey

Welcome to the forums Russell.

This thread is about AVO serial numbers etc. If you want to discuss the merits and capabilities of the instruments please start new threads in the appropriate section.
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Old 24th Jul 2007, 11:14 pm   #222
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Default Re: AVO Multimeter survey

Thanks; point taken.

My AVO has only the part-number on the scale plate (out of visibility below-centre): 5270-455 Ch.6 8mk.

A sticker on the side (next to what I take to be the date) reads: 1046 M90219, then beneath: MRTS/3. These numbers are also evident inside the battery compartment.

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Old 26th Jul 2007, 8:16 pm   #223
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Default Re: AVO Multimeter survey

Hello SPCh,
I would like to add a few AVO nos. if I may.

Mod.7 2763-A-248

Mod.7mk11 50001-A-1054.
" " " 3284-154.

Mod.9mk11 9658.567.

Heavy Duty 3901-567.

Mod.8mk111 71398.1267

Mod.8mk5 45962
Mod.8mk5 49955 8v/12/74

Regards.
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Old 30th Jul 2007, 3:14 pm   #224
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Default Re: AVO Multimeter survey

I have 4 ( four) AVO meters:
Heavyduty Mk5 No.3025-1266
Heavyduty Mk5 No 1329-1165
AVO model 7 Mk II Part No.10945-19A
The fourth one is in the basement...
AVO model 8 Mk IV - hope my memory didnt fade.
I supply its number later on

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Old 30th Jul 2007, 5:07 pm   #225
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Default Re: AVO Multimeter survey

Here's another one I've acquired:
Avo 8 MkIII - 74177.168
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Old 2nd Aug 2007, 9:15 pm   #226
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Default Re: AVO Multimeter survey

As I mentioned before, I have 4 AVOmeter products. The fourth one is
Universal AVOmeter model 8 Mk. III No. 64852.967 .

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Old 4th Aug 2007, 8:34 pm   #227
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Default Re: AVO Multimeter survey

from Holland, I own this one,

good working unit, without case,

model 40
serial: 05242 40/2/76
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Old 4th Aug 2007, 9:14 pm   #228
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Default Re: AVO Multimeter survey

From Holland,

Yesterday I received a second hand AVOMETER 40
serial on the side of the case: 05242 40/2/76, a young one I guess.

I had a bad resistor, 30 ohms instead of 15 ohms for the 1000 ohm range.

Soldered in a new one, it worked perfect!

Succes furtheron!
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Old 30th Aug 2007, 10:39 am   #229
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Default Re: AVO Multimeter survey

I am in the possession of two (small) AVO meters. The first one (the oldest) is an AVO Minor, probably from before WW II. It bears the serial number 10755-34.
The second one dates back to the '60s. It is an AVO Multiminor. It does not bear a serial number on the scale (as far as I have been able to see). However, I did find a number on the inside, molded into the back of the plastic front: 40628/3. I am not sure that is the serial number though, it might just be a part number.
The oldest one, the AVO Minor, does not have a switch, just a number of sockets you can plug the leads into. The second one does have a round switch knob.
Unfortunately, neither of the two seems to function anymore (the bearing of the needle perhaps?). I do not know whether they can be repaired.
If you are interested I can send you some foto's.
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Old 31st Aug 2007, 10:58 am   #230
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Default Re: AVO Multimeter survey

I have just added another Universal AvoMeter to my collection, serial No. 77-6758.
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Old 9th Sep 2007, 11:33 am   #231
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Default Re: AVO Multimeter survey

I've just bought my first multimeter. It's an AVO Model 8 Mark 5. Pt. No. 5270-455Ch. 5 8 mk. 5. It's got 8V/2/76 on the side, so it was made February 76 . It also says 96691 on the side.

It came with the original probes and an almost immaculate case. The meter itself is in very good condition aside from the fact that the +ve battery terminal has a bit of corrosion on it. It's lost its coating. The previous owner has obviously scratched some of the corrosion off and exposed a bronze colour underneath.
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Old 9th Sep 2007, 4:31 pm   #232
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Default Re: AVO Multimeter survey

I have here a slightly mangled testset No. 1 (6625-99-105-7050) with the serial No. 4211 on the left hand of the scale. sadly the front panel is damaged but it has not affected the accuracy.
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Old 9th Sep 2007, 9:02 pm   #233
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Default Re: AVO Multimeter survey

Regarding the UNIVERSAL AVOMINOR that I've mentioned in another thread, the serial number is U.72009.1144.

Is it possible to date it from that?
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Old 11th Sep 2007, 11:02 pm   #234
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Default Re: AVO Multimeter survey

I have here a UNIVERSAL AVOMETER MODEL 9 Mk II (so it says on the back panel). On the front it has 9sx stamped between the two main controls. The meter scale has the serial number 3xxx-1S-562.

It has the top removable cover for the batteries, and ranges which run in 3 - 10 - 30 - 100 etc. Three resistance ranges, 3000V DC and AC terminals, reverse meter button and cut-out.

It does not have the outer metal case or a leather case. I seem to recall buying this in a surplus sale back in the early 1990's.

Was working last time I used it (early 1990's?) :-}

Sadly it's not my favourite piece of test equipment. Give me a Fluke 77 anyday.
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Old 18th Sep 2007, 10:52 pm   #235
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Default Re: AVO Multimeter survey

I have just aquired my first AVO-a model 7 mark 2. It is in great shape cosmetically and seems to work perfectly. Tye school I teach in was about to throw it out (I have worked there 10 years and I never knew it existed) but I claimed it along with the leads and instruction book . The batteries were still inside a sticker on the outside showed it was last calibrated in 1968. the number is 4110-A-962.

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Old 30th Sep 2007, 11:02 pm   #236
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Default Re: AVO Multimeter survey

I have a Universal AVO Serial No. 96857 C 959
and a Universal AVO Serial No. 11983 H 664.D
also a Model 8 Mk 5 Serial No. 07239 8V/9/77 NATO STOCK NUMBER 6625-99-620-9572
I'm sure that I have another one in the workshop somewhere.
I'll check next week when I go over there to post some Ebay items.
Ron

Last edited by Darren-UK; 1st Oct 2007 at 12:43 am. Reason: This post approved as ok, but please ensure any mention of ebay complies with Form Rules section C.
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Old 1st Oct 2007, 1:18 pm   #237
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Default Re: AVO Multimeter survey

A nice AVO 8 Mk.IV acquired at Harpenden - thanks to Peter Sol. Serial No. 2198. 170.

Edward
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Old 8th Oct 2007, 9:59 am   #238
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Default Re: AVO Multimeter survey

Universal Avo Meter
Model 7 MK II
No.77169-A-1058
Purchased on Ebay for £1
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Old 10th Oct 2007, 3:22 pm   #239
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Default Re: AVO Multimeter survey

Hi,

My AVO 8 has the serial no 91893-C-659
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Old 11th Oct 2007, 9:27 pm   #240
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Default Re: AVO Multimeter survey

Another one
Avominor AKA air ministry testmeter type E. Ser no E16843 1944

Robin
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