<Well . . . freight cost alone might be justification for using switchers.
<Nevertheless, I don't see a use for the regulated supplies in connection
<with a bus which by definition uses on-board regulation. If the supply
<actually provides the specified voltages, that's a different situation. Th
<typical S-100 box, IIRC, used lots of amperes, even for just one memory
The average S100 crate was +8 20A minimum and many were 25-30A on that bus
never minding +12 at some 6A and -12 at same. The boards DO heat a bit
and fans were typically 110V 100-140CFM models!
Allison
Received on Tue Aug 17 1999 - 19:57:30 BST