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Check the two resistors that make up the voltage divider feeding the grid of the 6GM6 second IF tube. Should be 150K or 180K. This was a very common problem of no snow/hiss off channel. This diagram shows them as R306A and B.
Checked in circuit, they measure 93k each, which looks consistent with a parallel arrangement.
05-30-2021, 02:38 PM
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