john stumpf
Super Member
everything works marvelously on this set save for this issue.i read all i could in general on this issue,the info was varied and ran the gamut from 'live with it" to specific maladies such as a change of value of something in the front end, everything from capacitors.resistors or the local oscillator. i was tempted to leave it alone, but my curiosity got the better of me this morning. i turned it on and tuned it in after i removed the tuner cover and replaced the cabinet to speed the warmup. sure enough within an hour, with the fm muting on it had drifted enough to silence the station 100.3. using a q tip moistened with alcohol i carefully swabbed the local oscilator 2sc717 and lo and behold the station tuned in immediatly. this seems to suggest that the 717 needs to be replaced. they dont seem to be widely available but as time goes by there will come a time when they are totally UN available so i feel that if i can find a genuine part now is the time to deal with it. i also plan to deal with its neighbor a 2sc461. UNLESS of course im missing something and thats why im here. i fully realize i will have to realign the front end but that isnt an issue as i have a fm signal generator. by the way, does anyone know a SINGLE source for the 717 and the 461? shipping is a real killer to here/