[R-390] Class D Amplifiers

[Mark Richards]

Roger,

The output may switch at that frequency, but aren't there other 
techniques that use higher frequencies, like spread spectrum?

And what of harmonics?


On 02/07/2014 16:13, Roger Gibboni wrote:
> So I build Hi End Tube linear amps for Stereo nuts! You're right on with
> the Class D amp issues but for communications purposes, it should be fine.
> Usually they switch between 80 and 100 kHz and the LPF takes all of the
> junk out of the audio band. They're not my favorite for music but for the
> r-390a it should be fine. And at that price????   Roger WA3YTM
>