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29th February 2008, 04:47 PM
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diyAudio Member
Join Date: Nov 2005
Location: Milwaukee, WI
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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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