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Old 12th May 2007, 10:28 pm   #196
SPCh
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Join Date: Nov 2004
Location: Antwerp, Belgium
Posts: 345
Default Re: AVO Multimeter survey

Okay, it's definitely a Model 40 Mk II (so, post 1956),
but the movement has an unpainted "Alnico block" magnet - which suggests that it was either from a Mk I (1946-1956) or from a brief gap (pre-1964) when the red painted magnets were replaced by blue.

The serial number - on the scale plate - suggests much later than I would have expected posible, although date codes were sometimes rewritten if a meter was dramatically overhauled, and the format is still strange (to me).

I think this is may be one of those cases which will only be resoved if you allow PMM to ingest the smell of the works - his nose is better tuned than mine ! !

More to the point, how accurate is it ? Does it do the job ? Do you TRUST it ?
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