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Old 21st June 2009, 08:09 PM   #1
piero7 is offline piero7  Italy
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Default You opinion about this ripple killer

What do you think about this ripple killer for a preamp? All capacitors are poli

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Old 22nd June 2009, 01:00 AM   #2
SY is offline SY  United States
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Of all the ways to do quasi-regulation of a power supply rail, this is certainly one of them. For the same tube count, you can do better by using one triode as an error amplifier, the other as a pass element. A higher perveance tube will function better.

Presumably, the current draw is low. I haven't calculated the hum voltage of the raw supply, but it might be low enough without add ons.
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Old 22nd June 2009, 11:39 AM   #3
piero7 is offline piero7  Italy
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How about to use two 12BH7 in parallel to get more current?
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