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Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
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12th Jan 2016, 9:16 pm | #21 |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 510
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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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worried about the electrons entering the circuit and the smoke leaving Andrew |
12th Jan 2016, 11:11 pm | #22 |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 510
|
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.
__________________
worried about the electrons entering the circuit and the smoke leaving Andrew |