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10-28-2026, 10:44 AM
Hi Guys
The fact the circuit values have not changed in the re-issue amp suggests that the new designers are not paying attention.
Obviously a higher Rk value is needed. If stock is 250R, a 270R may or may not restrain things properly, and you might want to go to 330R directly.
Cathode-biased amps are in dire need of screen protection, so a change to 1k-5W per tube is important.
Have fun
Kevin
The fact the circuit values have not changed in the re-issue amp suggests that the new designers are not paying attention.
Obviously a higher Rk value is needed. If stock is 250R, a 270R may or may not restrain things properly, and you might want to go to 330R directly.
Cathode-biased amps are in dire need of screen protection, so a change to 1k-5W per tube is important.
Have fun
Kevin
