FS: Model 243 VFO with original manual. Works fine. Cosmetically 8.5 out of 10. Asking $110 + Shipping. FS: AADE DFD-1 Digital Readout in AADE's nice gray cabinet. Plugs into counter out on the Model
Hi Jerry, I am converting to DDS VFO's and AADE frequency display on my original Omni-A model 545. If that calibrator will work? Let me know. We might work something out. The AADE is vastly superior
Also consider changing the IC Op Amp in the AGC circuit. I think I liked the TI TL072 or 82. I'd have to look inside the rig to confirm what's there. This not a 100% cure but I found it to help on a
Hi Bob, Checked my Omni-A. Found a Burr Brown OPA2604AP Dual Op amp in there. I did the experiment several years ago. As memory serves the TI chips were good but I liked the Burr Brown chip mentioned
Hum in a power supply especially a vintage one would tend to imply the failure of the smoothing Cap. You may want to replace it as the ripple will only get worse. You should be able to locate a high
Most likely reason was that if the set screws were over tightened and the knobs cracked. My Omni-A suffered that fate. Much happier with the Radio Shack replacements. They have a brass center so no