[Elecraft] OT: TenTec Corsair problem

[J F]

Sorry about the space, but I know a few folks had the
TT Corsair (not II) before getting an Elecraft.

A friend has a problem with his rig. I suspect it is a
VFO/PTO problem. The last four digits on every band
jump all over the place, form the sounds of the audio,
the rig is running all over the frequency range of the
VFO/PTO. He doesn't have schematics for the rig, but I
would suspect either a bad voltage regulator or
clock/oscillator.  Any help?

Thanks,
Julius
n2wn