Just to clarify, are people using the 596 instead of 5AR4s and 5U4Gs? Is it a drop in replacement for those? Any concerns?
I can't find a data sheet for the 596.
EDIT: It looks there the heater current draw is the same so it should be fine. Thanks Xcalibur255.
Edited by dminches - 12/7/12 at 1:07pm