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RE: Actually...

Thanks anyway.

It would have been a good test.

The output impedance of that 6sl7 stage is not low enough to fully drive the Miller capacitance of the 2a3.

The result is a small loss of high frequencies and a phase shift that extends well into the audio band.

If you had a CCS loading the 6sl7 plate you could use the mu output and have a drive impedance that would be low enough to fully drive the Miller capacitance of the 2a3. (but you still wouldn't have the necessary drive current so maybe the whole point is moot)

Oh well, maybe next time.

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



Edits: 07/03/12

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