Carl WA1KPD wrote:
I am converting an old Marine Radio to a 160 mtr rig. The supply used a
transformer with a 100CPS vibrator. Can I use the transformer that came with
it on 60 CPS AC?

Certainly. The 100hz was a squarewave & there'll be enough core for
your 60hz sinepower. It's the radio units running 400hz & such that
are problematic & far too undersized. But if I were you I'd scope it
with the vibe under load first to be sure its really a 100hz (or so)
supply - I don't recall seeing a 100hz vibrator though there are a lot
of other things I haven't seen, too. You'll also have some filter L/C
issues to think of, or at least check, and there are hash components
you can get rid of. If the buffer cap's good I'd leave it in for handy
transient protection.

wrote:

Carl WA1KPD wrote:

I am converting an old Marine Radio to a 160 mtr rig. The supply used a
transformer with a 100CPS vibrator. Can I use the transformer that came with
it on 60 CPS AC?


Certainly. The 100hz was a squarewave & there'll be enough core for
your 60hz sinepower. It's the radio units running 400hz & such that
are problematic & far too undersized. But if I were you I'd scope it
with the vibe under load first to be sure its really a 100hz (or so)
supply - I don't recall seeing a 100hz vibrator though there are a lot
of other things I haven't seen, too. You'll also have some filter L/C
issues to think of, or at least check, and there are hash components
you can get rid of. If the buffer cap's good I'd leave it in for handy
transient protection.

Hmmm...I'm not so sure about this. I agree with Frank's concept but the
power xfmrs I see in car radios with typical ~100-120 cps vibrators seem
awfully small for 60 Hz use. Never tried one, though. Don't think I would.

-Bill

"-ex-" wrote in message news:dc647$42d1d839 the
power xfmrs I see in car radios with typical ~100-120 cps vibrators seem
awfully small for 60 Hz use. -Bill

They are but some were over engineered and can servive. It's a crap shoot.

--
73 and good DX. B.H.
Brian's Radio Universe
http://webpages.charter.net/brianhill/500.htm

I am looking for car radios with the vibrator? I want 1 of the 12 volt
radios. If anyone has 1 I sure would like to hear from ya. n4pge in
Griffin, Georgia.