Hi all, I recently purchased an old Ten-Tec Omni-A(with an AADE digital Freq. counter installed and original dial removed) from a silent key sale that is having some issues on transmit. Did a little searching and can't really find anything that stands out in the forums and my lousy Google-foo isn't finding anything helpful either.. Hopefully someone has experience or can give me a starting point to troubleshoot? Receive seems to be okay, but the issue comes into play on transmit.. It appears(on the freq. counter display, and reports from me trying to check into various nets on 40M) that while transmitting on SSB, my frequency is oscillating quite a bit.. several Hz. and am told it makes my audio sound fine one second, then distorted the next. If I key up on CW into the dummy load, I believe it stays steady as long as I have the key down and the drive not too high(20 watts-ish on the wattmeter). Also does it if I turn the drive up on a key down CW, and if I hold down the dits on the keyer with the WPM turned up. Wanted to move up into a little more solid state(my other rig with the exact antenna/tuner/dummyload, etc.) from my trusty old SB-100 and clear up the desk a little with just the TT and the TT power supply. Is it possible that I am bleeding RF back into the radio for some reason? I dont' currently have an earth ground installed(I know I should and it's on the adgenda as soon as the ground thaws a little.. the old Heathkit didn't seem to care much); Could this be causing something wonky? My ALC led is also not illuminating, and am going to take a look at the low-level driver board whenever I get a chance(I tested the LED and it's good) and see if there is something amiss with a resistor or diode.. SSB waveform looks good on my Heath station monitor(the only piece of "test" equipment I have other than a DMM). Thanks for any insight you guys might have, Sam, W8SJB.