[R-390] Non functioning BFO

[Transmaster]

I have just discovered the BFO is no longer working in my '67 EAC R390A.
I use a ELDICO SBA-1 SSB adapter so there is no telling how long it has been
this way.  I have the great Y2K manual out and tube tester at the ready
where would you suggest I start to get the BFO working again. I suspect it
is a tube but is there other things to look at.

Thanks much
Ken DE W7ITC

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Kenneth A. Crips, W7ITC Home of the Chew Crew, Red Headed Irish Terrier
House Ninjas, Chic', Cowboy, and Ladybug 10th degree black belts in Mouch
Fue, Bed Fue, and Con Artist Fue.