I have a mint condition SB 303 I purchased about a year ago and finally starting to work on. It receives signals fine and all the controls seem to work excpet for the Smeter.
It does not move with a received signal or the calibrator. If a strong signal is received you may see a slight movement but not much. It goes back and forth as it should with the rf control.
I have the manual and cannot find much mention of the S meter. Its not addressed in the section of possible faults and what to look for. I adjusted the agc voltage and it is spec.
It has never worked and I thought a cleaning-pots, board removal etc. would correct it but no luck.
The only other possible problem is with a received signal, it seems garbled but comes in clear with fine adjustment but I will tackle that problem later.
Any one familiar with this radio and can give me some suggestions? I have a signal generator.
I know that this is solid state and not a boatanchor but it was built with a 401