Olson vtvm

[maxhifi]

I think that it should match the RCA VTVM schematic found in their tube manuals (for example, the RC-26) close enough to be useful, it uses the same tubes, and looks a lot like an RCA of the era. Probably the main problem is those grey electrolytic and paper capacitors, I bet if you change all of those and clean the switches it will work just fine.