01-19-2026, 05:38 PM
Many thanks to all who responded, all very valuable info. At 81 years old, I have been off the bench for a LOT of years, but now back into it as a hobby to replace having sold my boat to eat up time. I am going to give a power supply transformer that I mistakenly bought a bunch of, and give that I a try as a choke, and use larger capacitors on the downstream side. This primary measures 7.4 H and 338 ohms. I am always leery of some of the old units for sale wherever, as they may be as close to biting the dust as the one in the set. I did an autopsy on the defunct one, and found that corrosion was endemic inside it, with lots of copper going green, especially the wires that joint the terminals to the windings. Also, the winding potting material so hard that virtually impossible to dig into successfully to find and reattach wires to the thin copper windings. I will let you know how that works out. Still a lot to do before I give it the initial "smoke test".




