high pitch sound from my 6c4

Tubes Asylum

Questions about tubes and gear that glows. FAQ

J.A.Z.

Gentlemen,
Thank you for the help, the problem was with the feedback.
corrected the problem and it sounds really good....
But now I have oscillation in the signal path, I was able to eliminate
most of the oscillation by adding a small amount of capacitance
between the 12au7 and the 6l6 signal path. But I still hear a small
amount from my speakers, hear is what I have noticed, If I run my hand
around the first stage (6c4) I can very the oscillation, and if I add
a shild over the 6c4 and ground it to the case, I can elliminate
the problem.
My question is where is the ocsillation coming from and how do I get rid of it without adding a shild around the 6c4, this would require that I replace the tube socket to one that accommodates a shild.
Thanks

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Topic - high pitch sound from my 6c4 - J.A.Z. 16:47:42 07/30/02 (2)

Re: high pitch sound from my 6c4 - Sidegetter 05:05:19 07/31/02 (0)

Re: high pitch sound from my 6c4 - fatbottle 17:45:24 07/30/02 (0)

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