[TenTec] Argosy S-Meter problem

[Pete Meier]

I've a new (to me) Argosy which is exhibiting an S-meter problem. It 
works fine in receive and when I put it in FWD and transmit it shows 
correct forward power/swr. However, when I remove the transmit power or 
place the switch in REV position, the needle slams to the left and pins 
there. I have to physically tap the meter to release the needle.

I have looked at the Low Pass Filter Bd. where the S-meter circuitry is 
contained but need some advice as to what is causing the needle to pin 
when the RF power to it is removed.

Any ideas or suggestion before I trouble the folks at TenTec?

Pete WK8S