I really can't understand that what I need to use for R12 and R15?
OUTPUT TRANSFORMER T1
1 LL1524(1517) 1:1 OR 1:2 CAN BE USED;
for 1:2 output transformer, r12/r15 should have relation 25/5.1, for example, r12=24k9/r15=5k1,
depending on which impedances your amp wants to see; for amp used with f76, i used 2k49 and 511r;
for 1:1 output transformer or transformerless,[/size] r12/r15=50:5.1 That what I used
and also you are saying here,
1 TBD POLY/COG 22...330 PF 50...200V C7
DEPENDING ON FEEDBACK RESISTOR'S VALUES AND AMP; 22PF WITH R12=47K, 330PF WITH R12=2K5
next question is about R17! Can I use 51R ?