Quote:
Originally Posted by Bigpimp347
Chances are if it's drawing current with no audio on SSB (or AM) try the 2SB688 voltage regulator hasn't gone dead short supplying 13.8v directly to the MOSFETs.
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This is a V6 (not V3) chassis so the power regulator / modulator transistor is a TIP36 rather than a 2SB. Although they certainly are a common source of problems, the radio in this case is still working in AM and FM TX modes, in which that transistor also controls the supply voltage to the transmitter. See all earlier posts in the thread.