VAX 11/750 Restoration Project

From: Gooijen H <GOOI_at_oce.nl>
Date: Fri Nov 8 01:17:34 2002

I do not have any experience with VAX 11/750's,
but I have once heard the following about the PSU.

They are not like the PDP-11 PSU blocks. Those can
operate without any load as they are series regulators.
The PSU's of the VAX 11/750 *must* have a certain minimum
load for correct operation because they are switched-mode.
I do not remember if those SMPSU's can be damaged by
running them without a minimum load, but I know SMPSU's
that will die without a load.

So, to be on the safe side: get some bulbs from your car,
connect them to the outputs of the PSU to shine a some
light on the restoration of the VAX 11/750 ;-)

success,

- Henk.
Received on Fri Nov 08 2002 - 01:17:34 GMT