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RE: Bang for the Buck

In production certainly qualifies as readily available. The 2 or so WPC SE, triode wired, 6V6s yield is plenty, for headphones. Only #45 DHTs sound better, in this power range. The "reissue" TungSol 6V6 made by New Sensor is excellent. "Poindexter" is on record as preferring the variant over NOS.

Keeping with the in production theme, use New Sensor's, EH labeled, 12AY7 for the voltage amplifiers.

A total of 3 signal bottles and loop NFB is not needed, with good O/P "iron". You decide whether to cap. or DC couple the 'Y7 sections to the "finals". I'd use high PIV Schottky diodes for B+ rectification, but I appreciate your "hollow state" preference. So, buy 3 specimens of the 100 mA. rated 7Z4 and present your friend with a lifetime rectifier supply. RES shows a $3.00 price per 7Z4. :>D


Eli D.

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