Hi Salas,
for my Tube-I-zator i have two possibilities to config my psu:
Witch of the two would you prefer?
for my Tube-I-zator i have two possibilities to config my psu:
An externally hosted image should be here but it was not working when we last tested it.
Witch of the two would you prefer?
SE power amp may upset this regulator because of the output transformer's strong inductive load. It has been tried on smaller headphones amplifiers, can't say for this, its your test. 3 Leds of 1.9V drop each, R1=18R 2W, R3=67K 5W. 350VDC input. R4 120K make from 240K//240K 2W each. MJE350 may hold at 330V out, test stronger Vmax PNP if not.
They have used it before on #26 in its thread with good feedback commentary. Make R3 33K 5W for 180V input. Measure 3x1.9Vf Leds @ 5mA so the 56R will give around 40mA for average Vgs. At this input voltage skip the big protection Zener, use only the small ones at the gates if any. Good luck and let us know.
Salas,
Thanks for your response.
What if I use a isolation transformer then I might have 170v input, the R3 33K stays the same? Use small zeners at the gates, I thought you suggest the D1 1n5383B can be smaller and the D5,6,7and 8 remain the same 1n4742a. Can I use same 90v for D1 or ??
Albert
Salas,
Thanks.
So I only need 4 12v for the purpose.
Will let you know but might take a while, for I just start ordering parts.
Albert
