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RE: Frequency Compensation

I've always found the 'SL7 and 'SN7 to provide excellent sound, and I believe they're more linear than most other octals and miniatures. Also, I'm building this particular amplifier with pre-WWII outputs, and I wanted to keep the late '30s look to the tube complement. That - plus the gain requirement - precludes the use of most other tubes for this.

FWIW, I did try paralleling both sections of the SL7 and bypassing the cathode. Neither technique produced flat response to 20K (I didn't try both at the same time).

I might try your suggestion for a CCS on some upcoming projects. Thanks for your input!



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