From: John Woodgate
Subject: Re: 12 vdc to 6vdc @ 30amps
Date: Sun, 15 Sep 2002 13:42:08 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Sun, 15 Sep 2002 13:03:47 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Tony Williams
wrote (in <firstname.lastname@example.org.
uk>) about '12 vdc to 6vdc @ 30amps', on Sun, 15 Sep 2002:
>Actually, we may having jokes about BOOTY but I have
> seen a 20KW audio amplifier for a vibrator voice coil
> that was along these lines... a huge quantity of 3055-
> -type npn/pnp pairs, 15-0-15 main supply rail, and even
> a large quantity of 741's in there somewhere. Heatsinks
> were water-cooled, via a large vehicle-type radiator at
> the back of the cabinet. I am not kidding nor exaggerating.
I understand that these monsters have current-source outputs. Can you
confirm that? Because if they are not, there are more uses for them,
including one which at the moment is in the 'too difficult' file.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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