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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: distortion ...

You would probably need to run the pentode driver as a pentode w/feedback and measure again to see if the distortion from the driver stage can be lowered.

FWIW, the 7B4/2A3 combo at the standard 60mA operating points produced the best 1W THD% I measured when I had that circuit on a breadboard.





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  • RE: distortion ... - deathtube 667 03:42:04 03/10/15 (0)

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