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Old 12th Jan 2016, 9:16 pm   #21
Andrew B
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Location: Bradford, West Yorkshire, UK.
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Default Re: Break up or repair?

Reporting in, the FM section works well.

AM is another matter, receives only a few stations, distorted and hum on the received signal, possibly a heater/kathode leak on the mixer, I have some more valves arriving soon, so at the moment I am content with Radio 4 on VHF-FM. Will check all the voltages on mixer in case.
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Old 12th Jan 2016, 11:11 pm   #22
Andrew B
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Default Re: Break up or repair?

GRRRRR, found error on the diagram, on V4 ECH81, marked as pin 7 should be marked as pin 1(g2,g4), pin 7 is actually g3.
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