Re: 7b7 audio tube replacement

Lost in the Waste Land wrote:

Some references on the web (TubeMuseum.com) say 6BJ6 or
CV522 could be used but I can't find those either at common audio
tube sites ( TubeDepot, TubesandMore ).

Any suggestions ?

need two ;-) .

The 6SS7 is the octal equivalent to the loctal 7B7. And the 6BJ6 is a
miniature version, but with twice the G. But it is odd to find these in
audio equipment since all are remote cutoff.

The miniature 6BH6 would be OK for audio while keeping heater power low
as is the 7B7. But it too is about double the G of the 7B7.

See 7B7 specs at
http://frank.pocnet.net/sheets/084/7/7B7.pdf

Cheers, John Stewart

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