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Re: Brady, Toccata & queries

Excellent post Gary, thanks.

You wrote:
When the ECC99 became available, they replaced the previous tubes because of their sonics. We haven't tried any others yet.

I have had good results with both the 6H30 and 6N1P. I would be interested in your assessment of them in your circuit.

You wrote:
Incidentally, I have been using the push-pull version of the LL1635, and no longer use a balancing pot between the cathodes. Measured low-frequency performance doesn't indicate problems with residual offset current. Furthermore, I am less convinced that absolute "dead-center" makes such a huge sonic difference, after having the opportunity to listen to an amplifier equipped with a knob and a meter for the purpose of nulling the offset.

I have suspected that this might be the case but haven't had the time to check it out. My thoughts are that AC balance is more important than DC balance, but there again, it is only a speculation.

Thanks,
Dave



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