Antique Electronics and Vintage Solid State
DuMont 405 VTVM
I’ve been on the lookout for a DuMont 405 VTVM since Mike Kent posted about it on the Antique Radio Forum.
In 1957, DuMont introduced their “400 Series” of test equipment, including the Type 405 VTVM.
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General Radio 1806-A Manuals
Many thanks for Philip Colston for procuring, scanning, and sharing these manuals ...
… for the General Radio 1806-A Electronic Voltmeter.
The first is the Revision A manual for the 1806-AR rackmount version of the meter. …
Triplett meter feet
The back of the Bakelite case for a typical Triplett VOM or VTVM is attached to the front by four machine screws.
The screws are accessed through deep wells molded into the back of the case. While there are small feet molded into the Bakelite casting, …
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