I'd love a Mullard 5AR4 but they're too expensive. How are the JJ's or other NEW types of 5AR4's? Any I should stay away from?
I've been thinking of trying other NOS rectifiers like 5U4's or 5R4's..etc... that will handle the voltage. Some won't handle the first capacitor value though. Is there any way around this besides lowering the value of the capacitor or inserting a choke?
I read somewhere that people like to use a pair of HF4007? diodes in series with the recifier to reduce/eliminate occasional arcing on startup (of JJ 5AR4's). Anyone ever had any experience with this and can tell how to wire it up?
I know the difference between direct/indirectly heated Rectifiers.. I don't worry about the difference.. I just wire in a standby switch.
Wired (in Triode)