VAX 11/750 power supply fault

J Blaser oldcpu2 at
Fri Nov 30 21:01:39 CST 2007

Quoting CRC <technobug at>:

> On Thu, 29 Nov 2007 12:02:05 -0700, J Blaser  
> <oldcpu2 at>wrote:
> >  In fact, a
> > couple of the PS PCBs went through the dishwasher to clean up the
> > remains to 'rodent residue'.  On the whole, it seems that I got them
> > back together properly!  ;)
> If there are any potentiometers on the boards that you washed, you  
> might want to ensure that the wipers are making contact. Generally,  
> pots are installed after a board wash unless they are sealed. An open 

Luckily, no potentiometers on the boards I washed.  I was concerned about this 
issue, too, but when I looked over the two boards that I planned to wash, I was 
glad to find that neither had any 'moving parts' components, mostly just 
descrete stuff, with an odd IC or two.  I think I'm okay on this issue.

- Jared

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