5 Jun
2023
5 Jun
'23
3:35 a.m.
On Sun, Jun 4, 2023 at 10:57 PM Fred Cisin via cctalk
<cctalk(a)classiccmp.org> wrote:
On Sun, 4 Jun 2023, Rick Bensene via cctalk wrote:
Actually it's +12.6V and +5.6V and you have to supply both voltages.
It's one diode drop to the +5V (logic supply) and +12V (DRAM, disk
motors, monitor supply), the -5V for the DRAM is produced on the logic
board.
I am told it was never used and that the Osborne battery pack came
with an inverter to provide 110V AC.
-tony
an example of early "mobile computing".
(Tongue firmly in cheek).
The original Osborne 1 had a 12V power input!