🚀 go-pugleaf

In article <622@neoucom.UUCP>, wtm@neoucom.UUCP (Bill Mayhew) writes:
> I like the idea of using a switcher to supply the B+.  By using a
> switcher, you eliminate bulk and the higher frequency means that
> smaller capacitors can be used to provide equal ripple removal.

Switcher or no switcher, you still have to take care of power line ripple.
It doesn't magically go away with a switching power supply.  Think about it.
If the switcher is powered from unfiltered full-wave rectifier output, the
high-frequency output will also be thusly "modulated."  Sufficient filtering
(and possibly some regulation, which will also have the desirable side effect
of reducing ripple) on the rectified output must be provided.
-- 
|------------dan levy------------|  path: ..!{akgua,homxb,ihnp4,ltuxa,mvuxa,
|         an engihacker @        |		vax135}!ttrdc!ttrda!levy
|    at&t data systems division  |  disclaimer:  i am not a yvel nad
|--------skokie, illinois--------|