Re: Moreton Cheyney
I suspect the last owner made a mess of modifying the audio stages.
There was a twisted flex sticking out a hole in the front panel which I think took audio from an early stage. He probably gave up on the complicated bits.
Hopefully I can work out how to fix things. There are a few clues.. as you say that 0.5uF shouldn't be there and he must have also removed the feed into the following stage as there isn't a connection to the grid and there isn't a grid leak to ground.
I suspect trouble started when perhaps he plugged in a 6K7 or 6J7 into the socket which is clearly wired for a 6B8. As the socket wiring is completely shielded by the two ganged volume controls he probably didn't realise his mistake so started messing around with the wiring and got into deep water and finally gave up and consigned the receiver (and amp) into a damp shed. Possibly he was the second owner so wasn't familiar with the receiver. The 6K8 was missing so he probably pinched that for another project.
Allan
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