On Sat, 03 Apr 2021 08:36:28 -0700 Shawn <com...@xmtservices.net> wrote:
> Tried putting an LM317 regulator in the line to drop the 30V supply to > 10-12V and the power dissapation is beyond the heatsinking I have > that'll fit, also seems wasteful. I have a switcher thatll fit the > bill but amd concerned about the noise inside the chassis that it might > make. I can bypass the input/output but concerned for radiated hash > noise. This depends. The MRT/FRK types are not that well shielded, but still better than modern telecom grade types. If you have a well designed switcher, then that should not be a problem. If you bought one of the many switcher on ebay/aliexpress, then I would not trust those... They are horribly designed, violating the layout rules in the datasheet (and those are already not up to time-nuts/noise-nuts standards). There are some 78xx replacments from reputable manufacturers (Murata, etc). Those should be good enough for that need. Still I would not place them close to the MRT, if possible. Attila Kinali -- The driving force behind research is the question: "Why?" There are things we don't understand and things we always wonder about. And that's why we do research. -- Kobayashi Makoto _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.