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Old 06-06-2017, 10:57 AM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,758
IIRC the LM317/LM337 family of regulators can drop 40V (input to output) a chip and source an amp of current. Three such regulators in series could comfortably drop 100V no problem...Plus they would reduce B+ hum to well below spec, and give you rock stable B+. If I were doing this I'd only drop ~20v in the first reg so if before warmup the B+ goes high without load there is safe headroom.
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