I have had a Yaesu FRG-7700 receiver since about 1982. It's developed a
problem recently in that the frequency shifts all over the map when you
touch the tuning dial. There is no way to tune to a specific frequency
because the tuner and the dial display are so unstable. Anybody have an
idea what may be causing this and how to fix it?

BTW, I haven't changed the backup lithium memory battery since I got the rig
20 years ago -- and all the programmed memories and the clock still work!

Thanks in advance for the help.

Not good and a common problem plauging 7700s as they get older. Usually a
sign that the CPU chip is going bad due to corruption. Usually in the early
stages the radio will finally lock on frequency after 15 to 30 minutes of
warming up and work fine after that, but quits doing this as it gets worse.

Definitely replace the backup battery and hard reset the radio. You might
get very lucky.

"David Trachtenberg" wrote in message
...

Thanks in advance for the help.