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RE: Ok, so how about best use of 27 tubes ????

Ah yes, I remember the grid stopper "debate", none to fondly..

Curious schematic. Why did you leave the cathode resistor of the 2A3s un-bypassed? Are you aware that that can cause distortion if the mu of the 2A3s differ? It was a somewhat common practice in cheap PP amps, but I am surprised that you would use it.

Also, that 7Hy choke in the supply to the 27 has WAY too much DCR ...


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