Yes, only to discharge the filter caps when the supply is off. Thanks for the tip. I recalculated using a 24K, 3W resistor I found in my parts that will give a 3 mA steady state at 100V output with a 2.4 second delay to discharge the filter caps and disipate about a 1/2 watt in the resistor when the supply is turned off. This should work fine.

I was able to determine a bleeder resistor for my circuit from a nice bleeder resistor calculator that I found online written in Excel. Figuring worse case of 100V dc at the output and the filter cap values, the calculator resulted in a discharge time of 0.05 second at 20 watts dissipation if I were to use a couple of 250 ohm, 25 watt resistors I have on hand in series at the power supply output. The resistors would never heat up. I've attached the Excel calculator if you or any other forum member is interested. Be aware that the calculator says to specify filter caps in farads and not microfarads for the calculation.

I kind of had a feeling that the resistor wattage would be too high. I think I'll scrap the idea of this battery eliminator for building HV type tube regens. Instead I'll investigate building low voltage regens using any of the several 12V space charge tubes that were popular back in the 1950s car radios.

I would be very interested in your results with this antenna. At 1.8 meters length (5.9 feet) this antenna would be ideal for an outdoor stealth antenna to be unnoticeable in my HOA retirement community. I would be able to fire up my Palstar R30A for SWL that I have not been able to use.

Thanks for two more ideas. The LF/MF preamp looks to be an excellent project to build for a loop antenna.

Interesting that you should mention using an antenna tuner. I have been considering buying a MFJ-959 antenna tuner with preamp made especially for SWL. Also, a MFJ-918 1:1 balun for my slinky antenna.

I made a mistake in my original post that I was using the neutral contact in an AC outlet for an earth ground when actually I have been using the larger ground contact on the AC outlet.

WOW! 😄 Thanks for antenna ideas. I've got most of the parts for all the suggested antennas. Looks like I have to do some circuit constructions on my bench.