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Old 24th Aug 2008, 8:32 pm   #341
pmmunro
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Default Re: AVO Multimeter survey

Trevor (Hilitevr),

You wanted to see what a Model 10 looked like:

The other attachments are the specification.

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Old 24th Aug 2008, 8:45 pm   #342
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Default Re: AVO Multimeter survey

John, (Tresyla)

We seem to have forgotten to answer your question - sorry about that.

Your first Model 7 s/n 7146-33044 is from January 1946 - quite possibly the tail end of a wartime government contract or maybe destined for a lucky civilian user whose turn had come up.

The second, 5411-A-1262.F was made in December 1962.

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Old 24th Aug 2008, 9:43 pm   #343
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Default Re: AVO Multimeter survey

I've moved the posts relating to Guvnah's AVO restoration to a new thread here:-

https://www.vintage-radio.net/forum/...d.php?p=197149
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Old 26th Aug 2008, 7:22 pm   #344
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Default Re: AVO Multimeter survey

Are you interested in details of the 'cheapo' AVO 1000 or 1001 series? We have a few kicking around at work that I can let you have details of, if you wish.

They're not at all comparible with a 'proper' Avometer, having white numerals on a rectangular black scale-plate with a red pointer, but they're made-in-England AVOs all the same, in all their plastic-encased glory. I think we originally purchased them to skull around on our tool trolleys for basic fault-finding, rather than precision measurement.
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Old 26th Aug 2008, 8:47 pm   #345
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Default Re: AVO Multimeter survey

Yes, still interested.
My cut-off point for the survey is "non-analogue, not Made in England".
(My cut-off point for enthusiasm is rather earlier ....)
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Old 1st Sep 2008, 4:28 pm   #346
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Default Re: AVO Multimeter survey

Another for my collection: an AVO 7, complete with nice leather carrying case, unmarked!

S/N: 44763-A-1053
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Old 1st Sep 2008, 6:08 pm   #347
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Default Re: AVO Multimeter survey

I have and still use regularly a DC Avominor which I bought in 1947 for £4. Unfortunately the leads have long since gone and I have improvised replacements. No model number or serial number as far as I can see. It originally took a single-celled Ever Ready battery made specially for meter use, but I now use an AA "bandaged" to fit.
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Old 1st Sep 2008, 6:57 pm   #348
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There should be a serial number at the bottom centre of the scale plate (underneath "milliamps & volts"). You might need to squint diagonally downwards to read it.
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Old 1st Sep 2008, 7:59 pm   #349
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Default Avometer Model HR

This relates to a posting by "Avondale " some time ago, (items 295 & 297) on page 15 of this survey. Sorry for the delay in supplying the information.

The attachment is a file of notes which I wrote for my records on this small range of Avometers outlining the basic features of these forerunners of the Model 8.

Please respect the copyright in these notes - they should not be quoted without acknowledgment nor used, wholly or in part, elsewhere without express permission. Please note too that I state that some information is speculative and needs to be confirmed.

If this note is beyond the scope of the Avometer survey, would an administrator please move it to a more appropriate thread?

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Old 2nd Sep 2008, 8:42 am   #350
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Default Re: AVO Multimeter survey

Eventually got round to checking mine,all Model 7 :-18365-A-1051.....7147.34213 (no letter)... 26920-A-751 (with war dept arrow, but sadly badly damaged)...both those with the A are also marked ZD 00021 at the top of the front panel, so presumably worked for the same organisation originally.
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Old 2nd Sep 2008, 3:35 pm   #351
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Thank you SPCh: I've now found the serial number on my DC Avominor which is

79768 - 446

I've had it sixty years without noticing it!
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Old 2nd Sep 2008, 5:18 pm   #352
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Default Re: AVO Multimeter survey

Geoff,

It was calibrated (and hence released for sale) in April 1946, which makes it just over 62 years old. If you had it from new you have its FULL history .... I'd be interested to hear if you've ever had it repaired/serviced/recalibrated, and how accurate it still is.
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Old 2nd Sep 2008, 5:58 pm   #353
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Default Re: AVO Multimeter survey

Another ex-BBC instrument for your records:

8 Mk. II Ser. No: 147568-C-1062 Used today in anger!
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Old 2nd Sep 2008, 7:25 pm   #354
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Quote:
Originally Posted by SPCh View Post
It was calibrated (and hence released for sale) in April 1946, which makes it just over 62 years old. If you had it from new you have its FULL history .... I'd be interested to hear if you've ever had it repaired/serviced/recalibrated, and how accurate it still is.
Thanks for that interesting information. It has never been repaired, serviced or recalibrated. It still shows 15 (i.e 1.50) volts exactly on a fresh Duracell alkaline AA cell so I reckon it is still pretty accurate.

I have used it for very amateur radio and auto electrical and at one time connected it to a full wave meter rectifier mounted in an old tobacco tin to make an output meter.

It is a bit sad-looking especially without its original box or leads but still keeps going - as does its owner!
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Old 3rd Sep 2008, 9:45 pm   #355
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Default Re: AVO Multimeter survey

Hello SPCH

I have an Avo 8 MK5 serial number 08805 8v/3/74, given to me by one of my old customers widow. I was a traveller for a electrical and radio wholesaler.

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Old 7th Sep 2008, 11:55 am   #356
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Default Re: AVO Multimeter survey

I've moved briary9's request for service information to this thread:-

https://www.vintage-radio.net/forum/...d.php?p=199264

and edited his post here.
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Old 14th Sep 2008, 11:57 am   #357
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Default Re: AVO Multimeter survey

I picked this little number up at a car boot sale, can someone identify it for me please? It has a hammered grey metal case and serial number 316 . 1266 on the scale.
Calibration sticker says last cal. 24-9-90 41dist WKsp REME.
It's in great condition with case and leads.
I haven't opened it up, cleaned it, or tested it yet just in case it's a valuable one.
Any information will be appreciated thanks.

Phil.
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Old 14th Sep 2008, 7:26 pm   #358
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Default Re: AVO Multimeter survey

Yes it's an AVO Model TS1, the NATO version of the Model 8 Mk II, but with a
1-3-10 range sequence (instead of 1-2.5-10) and lacking the INSulation and Low
Resistance ranges. A very nice instrument.
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Old 14th Sep 2008, 7:27 pm   #359
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PS: Don't open it up unless you really need to.
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Old 16th Sep 2008, 9:54 am   #360
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Default Re: AVO Multimeter survey

I've moved the discussion About the TS1 to a new thread here:-

https://www.vintage-radio.net/forum/...ad.php?t=32337
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