Switching PS for S-100 Computer? - test-drb@ccmp.vtda.org

22 Aug 2001

From: Rich Beaudry &lt;r_beaudry(a)hotmail.com&gt;
...
 I would like to ask if any of you know of an existing,
available, commercial
...
 switching power supply that could be used to power an
S-100 computer? 

WHY????  The bus voltages for S100 are UNREGULATED.

...
 I realize I could get a +5V and +/- 12V supply, and
just remove the
regulation circuitry on the cards, but given the amount of them that I have,
...
 that gets very labor-intensive, and I'd rather not
have to hack out parts of
...
 these cards... 

Only if its an old LINEAR supply as SMPS designs mostly will not dot it.

The S100 power supply is terminally simple.  Three transformers
{8,16, 16 V AC},  three bridge rectifiers and three caps... thats all
folks.

FYI there were "improved" S100 supplies that did some preregulation
using CVCs or transistors but they are not essential.

Allison