Very true, but a little Deoxit D5 carefully applied with a toothpick fixed ch3 and ch4 reception.
Back together, HV is only about 2.3 kV under load (supply refuses to start if set much higher), 7JP4 is quite weak, and we have some jailbar problems to fix, but the set mostly functions.
Here is the HV section... any recommendations for mod to improve starting under load?
jr