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Not Quite Right...

"A dead quiet DC 2A3 filament supply will MISS getting parts of the music off, instantaneous things. The amp will be dead, miss things."

That's clearly an educated guess on your part, and I don't mean to criticize you for putting it forward. However, it's incorrect, as those of us who have used ultrasonic AC filament supplies can attest. The "magic" of AC heating is still present in such cases, even though the amp is dead quiet. My experience with this derives from my own 211 SET amplifiers. For anyone interested, ultrasonic filament heating is relatively simple and inexpensive to try. Search my past threads on this topic for the details.


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  • Not Quite Right... - Triode_Kingdom 05:54:06 05/30/12 (0)

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