A full set of "Clapton" knobs

470 grid resistors have been replaced

Shared cathode on V1 220uf/820
.022 coupling caps after first stage
270k mixer resistors
No bright cap on volume pot
No 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 Presence control cap is an RS chicklet
Output and choke are Radio Spares
Power transformer is a Drake
Aluminum chassis