Well, good to know, as the main tuning knob on my bro-in-law's IC-735 has a flaky dead spot on it as well. It's been that way for years, but hasn't died, yet. Right now, I just use that rig to listen to my AM Carrier-Current station AM610 with a 2" wire on the SO-239 connector. Surprised on how well that transceiver sounds on AM RX with a decent speaker behind it. Score one for Icom there.