HV SS bench top power supply, advice needed - Page 2

richwalters · 18th December 2006, 08:41 PM

A 6C33 is an expensive luxury and will soon be getting rare. Try parallelling other tube versions ? topcap 12E1"s are dirt cheap surplus. Or are you against pentodes ?

richj

panos29 · 19th December 2006, 07:06 AM

I am not against pentodes at all, especially 12E1s and el509s are excellent pass elements although 6C33 is THE pass element and not expensive and rare at all, yet.

Problem is that I tried the proposed schematic and it does not work, the tube pass element is passing all the available voltage to the output. Shoud try a different topology for providing Vgk to the tube. Any ideas?

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18th December 2006, 08:41 PM	#11
richwalters diyAudio Member Join Date: Sep 2003 Location: Alps:Tube amp designs over 150W, SMPS guru.	A 6C33 is an expensive luxury and will soon be getting rare. Try parallelling other tube versions ? topcap 12E1"s are dirt cheap surplus. Or are you against pentodes ? richj

19th December 2006, 07:06 AM	#12
panos29 diyAudio Member Join Date: Dec 2001 Location: ATHENS, GREECE	I am not against pentodes at all, especially 12E1s and el509s are excellent pass elements although 6C33 is THE pass element and not expensive and rare at all, yet. Problem is that I tried the proposed schematic and it does not work, the tube pass element is passing all the available voltage to the output. Shoud try a different topology for providing Vgk to the tube. Any ideas?

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