S-100 Power Supplies: thanks!

From: Rich Beaudry <r_beaudry_at_hotmail.com>
Date: Tue Aug 28 08:16:53 2001

Hello all,

Thanks to all those who replied to my message regarding S-100 power
supplies, and thanks especially to Dick Erlacher, who offered to sell me
some cheap. I got a private email reply from someone offering the same
thing, and I took him up on it first. So to Dick, I'll pass but thanks
anyway...

The main problem in all of this was not ever the design. As Allison pointed
out, an unregulated supply is dead simple to design. Even looking at some
commercially designed/built S-100 supplies, you can see it's not rocket
science. The problem nowadays is finding one part -- the transformer. Most
all computers are +5V, +/-12V now, and of course transformer manufacturers
gear towards those. Even some of the surplus places I've gone to on the web
only have "common" voltages (+5V, +/- 12V, +24V, etc). That's why I wanted
to see if there was an SMPS that would do the trick. After looking at SMPS
prices, however, I've decided no to go that route. I'm sure they're
bullet-proof, and would function admirably, but I'm not going to plunk down
$200+ for one :-) (remember, we're talking high current here, not just the
little 1A switcher).

Anyway, thanks to all ...

Rich B.
Received on Tue Aug 28 2001 - 08:16:53 BST