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Odd tuner behaviour in two Yamaha receivers.

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I have two Yamaha receivers from the 1980s, an R-50 and an R-70. I just picked up the R-70 to replace the R-50 that has been in my workshop for a few years, and is showing its age. The R-70 volume/balance control needed a bit of TLC but nothing serious, and the receiver is working great now; with one exception.

The FM tuner regularly reverts to an even number frequency (e.g. 100.5 displays 100.4), even though it seems to be tuned correctly. Oddly enough, BOTH Yamaha receivers have the exact same quirk. I only have one other digital tuner, an Accuphase T-107B, but it is still working perfectly after all these years.

Any ideas?

Hey, Donnie. Since you need a new place to live, maybe Dennis Rodman can help you find a place in Pyongyang with your buddy 'Little Rocket Man'.

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