<Several S-100 manufacturers who were still at it in the mid-80's had
<regulated +5V on the S-100 backplane. Those who wanted to use their
<older S-100 cards in such a machine just jumpered across the 7805's and
<viola!
More commonplace was the use of constant Voltage transformers or simple
preregulation so the +8 really was +8 and not +12 when lightly loaded.
Allison
Received on Tue Aug 17 1999 - 19:57:06 BST