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 sharp cut off 7AG7
would be a better direct plug-in choice.

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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