Re: AVO Multimeter survey
It's notoriously difficult to find out when the MOD ceased using a given technology, especially regards miscellaneous items of gear.
Phil, your D.2104-541 is interesting- a 1mA mvmnt. matches neither a Model D or Model 7 spec.. Yet if it were a friday afternoon reject it would be amazing if it had survived.
I have an odd Avominor Model 1 (1500v) that was fitted with a couple of incorrect bobbins, which survived a (probably deliberate) bash on the front which took out a chunk of the facia, but i find it much more difficult to theorise on the story behind the meter that you have.
Dave
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