DHT filament voltage

SET Asylum

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

I'm building an 4101D (101D) DHT amp which need 4,5V/1A nominal, but I can get only 4,15V without changing the trafo.(Schottky bridge and LL1694 choke) Will it shorten tube life or deteriorate the sound quality?
In the early days of radio the volume was regulated by a filament rheostat, so may be it is ok? Any opinions on this are appreciated.

Johnny

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Topic - DHT filament voltage - iodemus 00:07:21 09/18/14 (6)

Starved filaments - Paul Joppa 11:23:47 09/18/14 (1)

RE: Starved filaments - iodemus 06:04:27 09/19/14 (0)

RE: DHT filament voltage - Caucasian Blackplate 09:54:43 09/18/14 (1)

RE: DHT filament voltage - iodemus 06:18:51 09/19/14 (0)

Starved filaments - andy evans 05:59:57 09/18/14 (0)

RE: DHT filament voltage - Stuben 05:46:39 09/18/14 (0)

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