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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: We're trying a semi-split supply... posted by Lee of Omaha on June 24, 2016 at 08:42:17:
"The time constant is very long. It's (C=100uF)-(choke-resistor in series)-(220uF)- and then 2 x (diode-220uF)."
You've forgotten the impedance of the load (amplifier). That's what drains the supply and determines the time constant. That aside (and in addition to the points I made previously), the diodes will degrade the ability of the supply to maintain voltage at the channel driven hardest. If this happens, does it really matter if the other channel continues to operate unaffected? The channel producing the majority of the sound will fall on its face sooner because it doesn't have access to all the capacitance of the supply. As for sonics, I wouldn't waste the time. The unwanted effects of the diodes can be easily quantified with basic test equipment. Sorry, I know that's not what you want to hear, but this modification will perform in a way that's entirely predictable.
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Follow Ups
- Time Constant - Triode_Kingdom 11:06:50 06/25/16 (1)
- RE: Time Constant - Lee of Omaha 15:19:02 06/25/16 (0)
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