This shot shows the large black choke that was sometimes used in the early JTM's
Several parts have been replaced in this amp but it's still a nice piece
Shared cathode on V1
.022 coupling caps after first stage
270k mixer resistors
Bright cap on volume pot is 250pf
556pf mixer bypass cap
no bypass cap on V2a cathode
56k/250pf tone stack combo, typical JTM45 setup
27K NFB resistor on 16ohm tap
.1 output coupling caps after phase inverter
220k bias splitter resistors
.1 cap on the presence control
Power and output transformers are Radio Spares
Chokes manufacturer is unknown