On Tue, 11 Feb 2014 17:45:58 -0800, "Howard Beal"
wrote:


"Gunner Asch" wrote in message
.. .


Is 16.5 volts "too high" for most 12vt dc devices like Marine radios,
fish finders, GPS devices, CB radios, am/fm/cd players and the like?


Yes.


If the voltage is too high..what cheap and easy method is there to
drop the voltage down to 13.5/12vts to run my various electronic
devices? Besides a big as resistor....?


Build a regulator using a 7812 voltage regulator and some 2N3055
transistors. You could also use a LM317 and make output voltage
adjustable. Don't forget the crowbar on the output.

Best Regards
Tom.


Right. Would you have the plans someplace downloadable?

After the stroke..as Ive mentioned before..Ive lost a lot of bits and
pieces..and I drew a complete blank after reading your solution. So
its worse than I thought.

Sorry about that.

Ill need about 10 amps max output. Ive got about 400 amp hours to work
with.

Gunner

--
"Virtually all members of [radical] groups sincerely believe that
they are fighting the Establishment. In reality they are an indespensible ally
of the Establishment in fastening Socialism on all of us.
The naive radicals think that under Socialism the "people" will run everything.
Actually, it will be a clique of Insiders in total control, consolidating and
controlling all wealth. That is why these schoolboy Lenins and teenage Trotskys
are allowed to roam free and are practically never arrested or prosecuted.
They are protected. If the Establishment wanted the revolutionaries stopped,
how long do you think they would be tolerated?



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