PDP8 power supply G8018

[Wai-Sun Chia]

On 4/19/05, Steven_R_Hutchins at raytheon.com
<Steven_R_Hutchins at raytheon.com> wrote:
> 
> 
> I am considering using two modern +5v at 25A switching power supplies to
> replace  the +5V source ( leaving the original -5V at 2A,+15 at 2A,-15 at 2A,and
> +20 at 4A as original) in a PDP-8A.
> My intent is to increase the reliability of the system. I have had trouble
> with keeping the G8018's operating. I occasionally trip the breakers on
> startup. I am thinking bad filter Caps. Perhaps someone could give some
> opinions on this (Crazy) idea.

Hmm....here's a crazy thought..
What about...replacing the filter caps? :-)
Or troubleshooting the PSU?

A PDP8 with a SMPS to me is total heresy.
Where do you stop?

One of the tenets in classic computing (to me anyway) is to retain
originality as far as possible or as much as your funding/SO permits..
:-)

/wai-sun