Rivieraranch
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There have been some comments elsewhere about substituting the 6BQ7 tube in place of a 6922. I do not note that anybody has tried that with a CSP2 or the other DECWARE equipment that uses the 6N1P/6922 tube.
One time I tried a 6CG7 and the amp was lifeless. Recently, somebody started a thread about using this tube and I shot it down, so to speak. The 6CG7 has lower transconductance, lower gain and it shows in the presentation.
However, I note that the 6BQ7 is similar electrically to the 6N1P - so much so that I use the the test parameters for 6BQ7 to test a 6N1P tube in my tester.
I would be curious whether anybody has tried this tube in a DECWARE.
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