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The Philpott · 7th Mar 2018, 11:02 pm

Type E Air Ministry Test Meter: E-21060-1945

In exceptional cosmetic condition, hardly appears to have been used. Even the switch is positive; they are usually quite mushy.
Usual age related glitches: loose glass, o/c bobbins, dust and varnish flakes inside and -just for a change- the swamp card was o/c.

Particularly of interest is the E type fuse cartridge, which has the black seal intact, but measures about 13 ohms compared to between 11 and 11.5 ohm which is what i was expecting (and had documented here previously)

Conveniently the (o/c) resistance range bobbin is supposed to be 470 ohm or thereabouts, so a piggy-back resistor of common value was used.

7th Mar 2018, 11:02 pm	#1593
The Philpott Dekatron Join Date: Aug 2016 Location: Colchester, Essex, UK. Posts: 4,107	Re: AVO Multimeter survey Type E Air Ministry Test Meter: E-21060-1945 In exceptional cosmetic condition, hardly appears to have been used. Even the switch is positive; they are usually quite mushy. Usual age related glitches: loose glass, o/c bobbins, dust and varnish flakes inside and -just for a change- the swamp card was o/c. Particularly of interest is the E type fuse cartridge, which has the black seal intact, but measures about 13 ohms compared to between 11 and 11.5 ohm which is what i was expecting (and had documented here previously) Conveniently the (o/c) resistance range bobbin is supposed to be 470 ohm or thereabouts, so a piggy-back resistor of common value was used.