SET Asylum

6BQ6 Does Not Make a Simple Amplifier!

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In Reply to: RE: Well according to Audio Note... posted by Janos on October 02, 2007 at 21:59:27

Dear Janos,
Firstly, the P4 circuit uses two triodes in the signal path the third valve is the rectifier, and not in the signal.
Secondly, being a pentode and therefore a 5 grid tube the 6BQ6 may have enough sensitivity to make a notionally one stage amplifier, but it requires feedback and is not really linear the way a directly heated triode is, so whilst it may be compelling to believe that it makes a simpler amplifier, in reality it is an illusion.
2 watts is also hardly a commercially viable proposition, is it?
Sincerely,
Peter Qvortrup

Edits: 10/04/07

Follow Ups:

RE: 6BQ6 Does Not Make a Simple Amplifier! - Janos 22:35:47 10/04/07 (0)

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