Kegon schematic is exactly the same as Conquest low gain. Only difference is that Kegon is all silvered wired (including output trans and mains cables)plus black gate capacitors and silver signal capacitors. I sent the schematic to Jac before I order the tubes and he said the schematic is absolutely OK and safe to use these tubes. So no worries on this. And I already informed Andy Groove ( designer of Audionote UK) that these tubes are the best sounding 300b I have ever tried on the Kegons.