old Sessionette 75 Mk 2 - no output

[Bushbaby]

I hope that I've recorded this correctly, the readings are as follow (pin 2 source, pin 3 drain) using UNIT-T UT61-E DMM set on diode test
2SK226 (Black) N - Channel MOSFET.
- source to drain = 0.1358 V
- drain to source = 0.0L V
2SJ82 (Green) P - Channel MOSFET
- source to drain = 0.0L V
- darin to source = 0.2858 V

I hope this helpful?
Best Regards
Rob