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Questions about tubes and gear that glows. FAQ

RE: 6SN7 and the VT231 designation.

I would tend to think the opposite. I read a lot of electronics industry mags from the 1940s and 50s.

A tube manufacturers in the war years would set a different (tighter) tolerances for different QC checks during the manufacturing process, as well as on completed tubes. Same construction, same tube in most cases, but a greater assurance that it meets or exceeds specs and performance, and that's what the military needed....assurance that those tubes put in use in rockets, jets, ships, radios in the jungle, etc., operated, they best they could with minimal failures.




Your interest may vary but the results will be same. (Byrd 2020)

I can't compete with the dead. (Buck W. 2010)

Cowards can't be heroes. (Byrd 2017)

Why don't catfish have kittens? (Moe Howard 1937)


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