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I have a round emblem KWM2A. BFO has a spurious oscillation for about 1/5 sec when going from receive to xmt and again when going back to receive. Haven't measured freq but would guess about 10 Mhz osc. Have change BFO tube V11. My KWM2A has the 47 ohm resistor R195 which was added in later models to "help prevent spurious oscillations". Sounds like my problem, but I do have the resistor.

Any suggestions? Thanks.