NEW EXPERIMENTS TONIGHT
1.? Now the "input switching diodes"? sides of the low pass filters were reconnected, in addition to the HV voltage power supply, and the ISOLATED highest low pass filtter is still used to directly take the output of the amplifer and go to the output.
2.? See photo of the SCHEMATIC, the photo of the soldering, and the photo of the output spectrum
3.? The 2nd harmonic is now about -42.5dBc,, the 3rd harmonic is still way way down.? ?Having the INPUT diodes connected -- but no connection from the OUTPUTS to anywhere, didn't make a terribly large bit of difference.
73
Gordon KX4Z
