DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer? - diyAudio
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Old 29th February 2008, 04:47 PM   #1
sgerus is offline sgerus  United States
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Join Date: Nov 2005
Location: Milwaukee, WI
Default DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer?

I came across an interesting schematic for a Cary 805C that heats the input driver and the 300B from one 6.3vac transformer.

The 6sl7 ends up at -1.75V / 4.1V (5.85V)
The 300B ends up at -1.75V/3.1V (4.85V)

In general, is this a good practice?
Would this work if the 300B did not use fixed bias?
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