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The Philpott · 18th Feb 2018, 7:13 pm

Indeed, i think it was Pete who commented that the Mod 7 went through a lot of detail changes over the years, none of which was represented by a change in nomenclature.
I think that even the evolution from Mk I to Mk II was muddied by the early option of PF terminals, and retention of the old style main terminals for a short time.

Not sure when 'add half a notch to press-button AC ranges' got phased out- it certainly applied to the Models 7/40/47/48 in the mid 'forties but i don't have a meter from the 'fifties to compare.

18th Feb 2018, 7:13 pm	#1584
The Philpott Dekatron Join Date: Aug 2016 Location: Colchester, Essex, UK. Posts: 4,108	Re: AVO Multimeter survey Indeed, i think it was Pete who commented that the Mod 7 went through a lot of detail changes over the years, none of which was represented by a change in nomenclature. I think that even the evolution from Mk I to Mk II was muddied by the early option of PF terminals, and retention of the old style main terminals for a short time. Not sure when 'add half a notch to press-button AC ranges' got phased out- it certainly applied to the Models 7/40/47/48 in the mid 'forties but i don't have a meter from the 'fifties to compare.