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RE: Boy howdy,that really made a difference!

That .1uf coupling cap will not let all the bass through to the output tube's grid.

(.1uf into the 60k ohm grid resistor creates a high pass filter with a -3db of 26Hz.)

Try a 1uf cap.

(1uf into the 60k ohm grid resistor creates a high pass filter with a -3db point of 2.6Hz)

A .5uf (.47uf) would also be just fine with a -3db point of just over 5Hz.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"


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