On 6/9/20 2:10 PM, Josh Dersch via cctalk wrote: > On Tue, Jun 9, 2020 at 7:44 AM Jon Elson <[email protected]> wrote:
> Thanks Jon (and everyone else). Yes, this is a ferroresonant transformer > (w/matching motor-run cap), I'd just never heard one in a DEC machine that > was so very loud. I'll see if there's anything that needs to be screwed > down a bit more. Well, humming isn't always bad--I'd like my transformers to be able to hum "Coro a bocca chiusa" from Madame Butterfly... :) Ferroresonant supplies do work, but make ugliness on the AC line. Cheers, Chuck
