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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 10th Oct 2018, 11:11 pm   #1761
Sinewave
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Default Re: AVO Multimeter survey

I feel your pain.

Lately I have seen enough of these 'steampunk' articles.

The prices they want for them is utterly ridiculous.
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Old 11th Oct 2018, 9:25 am   #1762
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Default Re: AVO Multimeter survey

Hi Group,

Now here is an interesting one.
Could this be the youngest Model 7 ?

Absolutely Mint, even has both it's Rubber PF Socket Dust Plugs.
AVO Seal still intact, so probably never been opened.

Label on the side like a 8MkV
MOD7/2 2/87 (Feb 1987)

Latest Date in the Survey for Model 7's is 1977 and there are several from this Year.
I have previously seen a 1978 Model 7, but this one Trumps it by 9 Years!

Anybody have anything younger in their collections?

Ian
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Old 11th Oct 2018, 11:31 am   #1763
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Default Re: AVO Multimeter survey

The terminology of steampunk is morphing, 'upcycled' is becoming 'saved'- this is disconcerting because people will be led into thinking that by buying contraptions they are doing their bit to commemorate cultural/technical history.

The Model 4, i regard as 'finished' now, the original leather strap was present but unsafe..replaced it. Originality has it's limits..

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Old 11th Oct 2018, 3:10 pm   #1764
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Default Re: AVO Multimeter survey

Superscope's invitation prompted me to look at my model 7s and alas cannot beat that though as you will see from my model 40 list I do have a 40/7/78 instrument.

47A 8067-B-0342 Bakelite
40mk1 40485-642 Aluminium black crackle
40mk1 417599-1146 Aluminium mottled grey
40mk2 13071-B-956 Bakelite
40mk2 27852-B-366 Bakelite
40mk2 ?121 40/6/70 Bakelite
40mk2 91517 40/12/75 Bakelite
40mk2 87647 40/7/78 Bakelite
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Old 12th Oct 2018, 1:14 pm   #1765
Superscope
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Default Re: AVO Multimeter survey

Hi Richard,

Can I just confirm some of those Numbers with you?
The Database has pulled up some Questions!

40mk1 40485-642 Aluminium black crackle

Is this possibly the same Meter reported on Thread #1274
The number there was 40185-642
One digit different which seems coincidental, so thought it better to check.

40mk2 91517 40/12/75 Bakelite

Is this possibly the same Meter reported on Thread #1110
The number there was 941617
A few similarities in the numbers so again, thought it better to check before entering them in as New Numbers.


The extra discriptions I think are very useful and informative.
I will try to work out a neat way of incorporating this info into the Survey List in the Future, although at the moment,
this infomation wasn't widely reported in past, so is not generally available.


Ian
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Old 13th Oct 2018, 10:35 am   #1766
Barnmead
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Default Re: AVO Multimeter survey

Hi Ian
Apologies, Looking more closely I see that I that i had misread the the 1 as a 4 because it has a pronounced downstroke correct number is 40185-642 as stated previously.


1975 meter has a side label so not so clear but on second look I think 91617 is more likely.

The black labels on later instruments sometimes very difficult to read as the printing has worn away.

Sorry for confusion.
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Old 14th Oct 2018, 10:20 pm   #1767
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Default Re: AVO Multimeter survey

Quote:
Originally Posted by Sinewave View Post
I've just added another one to the collection, another Avo 8 Mark 7. Now, the difference with this one, which is why I wanted it, is that it's a much later mark 7, identified by the modern Avo badge and the Cat 3 markings.

But, I don't recognise the serial number format, so am having difficulty dating this one. It's nothing like the other mark 7s I have in format.

I came in a lovely modern vinyl case which appears to be velvet lined, with the more modern AVO badge on it. Only down side of the case is the buckle is broken.
So, what do we think? November 2002?
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Old Yesterday, 10:01 am   #1768
Superscope
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Default Re: AVO Multimeter survey

Well anything is possible of course, but it wouldn't really make any sense,
as it would have been just as easy to have printed 1102 at the end, following the normal tradition of abbreviated Dates.

It is more likely that your particular Mk VII simply didn't have the Date attached, as is very common among the Mk V's.

The only person I can think of, who might be able to shed any definitive light on this is AndyGilham (if he reads this), if
by any chance he is able to locate any achieve manufacturing Data at Megger. It would definitely have been recorded
back in the Day, but I'm sure Andy would have told us, if he had found Serial Number Data.

Sadly, British industry is notorious for having Binned Manufacturing Records years ago having
been deemed worthless and a Waste of valuable Space to keep.


Just my thoughts.

Ian
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