Justaguy

https://shop.analogtechnologies.com/ATMV12V400V10MA1.htm Here's a similar American manufactured PSU. Unfortunately it's only 10ma of current instead of 20ma

Referring to my last post, I saw the images of the Felista audio repair and that region of the board is unpopulated. So another question: Is there a board for Power supply #3? (reference quote above) megatronpowersupplyxl has the gz34 tubes and the LC filter, but no 6l6gc tubes. The 300V supply has a el84, which is the 6bq5 quoted. This theoretical full tube build would be 3 on the 300V PSU, 6(?) on the 400V supply and 12 on the amp? That would certainly be something to look at.

I'm looking at the 300V power supply for the Megatron XL (megatronpowersupply300v2xl in the drive) and it looks like pin 5 on the pcb has an unlabeled component connected to the +300V line. Looking at the schematic (megatronps300.pdf and megatronschem2.pdf in the drive) have a 22 ohm R27 connecting pin 5 to ground. I'm very much a novice, but I don't think connecting a heater pin to the output line is right.

What are the differences between this and the portable electrostatic amp in the other thread? Or is this just an update thread with new power supply modules?

https://ifi-audio.com/products/ican-phantom/ The successor(?) of sorts to the iESL? Very strange approach they take to bias voltage.