Thanks for the tips. Odd... No one is currently producing equivalent J49/j134 complementary MOS devices in a standard to-3 case? I think the Exicon 10p16/10n16 are also long out of production. I'd like to see how people are mounting the power tab style mosfets where the aluminum "can" is supposed to go. Per the Renesas datasheet the 2sj160 looks adequate for Hafler style ~60V rails.