You opinion about this ripple killer

piero7 · 21st June 2009, 08:09 PM

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

SY · 22nd June 2009, 01:00 AM

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.

piero7 · 22nd June 2009, 11:39 AM

How about to use two 12BH7 in parallel to get more current?

21st June 2009, 08:09 PM	#1
piero7 diyAudio Member Join Date: Apr 2009 Location: Matera	You opinion about this ripple killer What do you think about this ripple killer for a preamp? All capacitors are poli

22nd June 2009, 01:00 AM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	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. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

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22nd June 2009, 11:39 AM	#3
piero7 diyAudio Member Join Date: Apr 2009 Location: Matera	How about to use two 12BH7 in parallel to get more current?

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