Anyone familiar with this VTVM?
Not much info on the 'net.
Seems like it was modeled after the RCA Senior Volt Ohmist.
Not much info on the 'net.
Seems like it was modeled after the RCA Senior Volt Ohmist.
I think just about everybody's VTVM used the same basic schematic, with some variations on exact component values, tube types, etc. If I had such an instrument and wanted service info I'd download an RCA tube manual from the early 60's, find the VTVM example circuit, and start tracing out my instrument's circuit - noting differences between the example and my hardware. There shouldn't be more than a couple of tubes and a few dozen components in the thing. The worst part will probably be working out the function and range switches.
Dale
Dale
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