On 2/7/2020 3:54 PM, Jim Garland wrote:
One might mention that the switcher needs to have a floating 7.5V output, so it
doesn't provide a ground reference for the filaments.
Yes. BUT -- given that switchers are notorious for RF noise, I'd be
seriously cautious about selection of one that's quiet. We all know it's
POSSIBLE to build quiet ones -- the ones that Elecraft and Expert are
using with their amps seem to be pretty quiet.
73, Jim K9YC
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|