[Amps] 3CX3000A7 on 144 MHz

[Jim Brown]

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