[R-390] 60 Hz Hum Output from R-390A IF Module

[rbethman]

Jon,

URM-25

Section 6 of the NAVSHIPS manual - Corrective action.

Hum on output - Tighten T-201, replace V-101.

You DID say no RF no hum?

I've just been re-reading and also digging into the URM-25 manual.

Bob - N0DGN

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Bob - NØDGN