For those that don't know, me and my father came into posession of a used Kenwood TS-820s in various states of disrepair. Currently, we have fixed these problems: - Dead lamps in meter - VFO disabled - Frequency counter broken
After fixing that, we we able to have a QSO with a station in AL. Shortly after that, however, it failed again. We've looked on the web for information but found it lacking. Our symptoms are: When going through the tune-up procedure on K4EEA's website: Mode = Tune Meter = ALC Load = Fully CCW Plate = Middle of band it says to peak the meter with the Drive control. However, the ALC meter is always at 0, with no swing at all. We've tried these: - Check voltages from transformer + rectifier - Replace driver tube - Ran finals thru a tube tester, came out good. - We measured the voltage on the Air-Variable cap, expecting a lowest reading of -2.2 VDC. However, ours was always V > 0 with no variation as the cap changes. We're at a loss as to what to try next. Anyone have any ideas? --- Scott KI5WLJ
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