layout for dc power supply board-- basically the increased need for current means bigger caps (shown) and smaller resistors (not shown). i could have tried to install a high voltage regulator. but can barely fit and wire the mods's i've already made.
Maybe next time i'll try to etch a real pcb.
Note: the diodes on the left are for the low voltage heater supply. The high voltage comes from a full wave rectifier tube off board.