15 Jun
2002
15 Jun
'02
9:56 p.m.
My initial reading (more or less my last) of the spec
for the new Imsai is
that the power supply is a regulated switcher that provides the "standard"
voltages (though they're no longer standard) of +/- 5 and +/- 12 volts.
Normal S-100 hardware had on-board regulation, hence expected to see +8 and
+/- 16 on the bus.
This isn't awfully new in the S-100/IEEE696 world; in the 80's Compupro
sold a number of IEEE696 systems that distributed regulated +5V instead of
unregulated ~8V, courtesy of a switching power supply.
To put a "regular" S-100 board in all you had to do was jumper around
its on-board voltage regulators, no big deal.
Tim.