Nice red Iskra caps, common in these amps
Split cathode V1a 2.7k/.68uf. V1b 10k
All coupling caps are .022uf
470k mixer resistors
Bright cap on volume pot is .001uf
500pf mixer bypass cap
No bypass cap on V2a is
33k/470pf tone stack combo
100K NFB resistor on 4 ohm tap
220k bias splitter resistors
.1uf/4.7k on the presence control
All transformers are Drake
Steel chassis