RCA 68R3 FM not working - Videokarma.org TV - Video - Vintage Television & Radio Forums

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RCA 68R3 FM not working

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04-14-2014, 12:59 PM

jr_tech

VideoKarma Member

Join Date: Sep 2009

Posts: 4,573

I would first clean and de-ox the pins of the FM local oscillator tube (and socket) very well.

It is also quite possible for the FM local oscillator tube to test good (especially if you are using a simple emission checker), and still not oscillate at the high frequencies necessary to tune the FM band... I would try a substitute.

jr

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