[PDP8-Lovers] Re: how to clean a PDP8/A, dishwasher?

From: Matthew Sell <msell_at_ontimesupport.com>
Date: Mon Dec 17 11:16:26 2001

Johnny,

> As has been said before, what do you think manufacturers do at the end of a
> > production line?
>
>They wash them yes. They *don't* put them in a dishwasher. There is a
>hughe difference.

Wrong. One manufacturer I worked for used a commercial Hobart dishwasher
that was modified by an electronics distributer to include racks
specifically made to handle printed circuit boards. This "boardwasher" was
literally a dishwasher. Not a unique setup, either.

You say there is a huge difference. What are the differences? Every
boardwashing setup at every manufacturer I've consulted or been an employee
of used a system that washes boards using higher water pressure and
temperature than your common household dishwasher. If you are referring to
a big difference, then I guess you are right. Your dishwasher is *MUCH*
more gentle for the items being cleaned than the typical commercial
boardwasher.

> > I don't advocate unneccessary cleaning, but sometimes it's required.
>
>I'd still never use a dishwasher.

I'm offering the suggestion that people try using their dishwasher to give
the computer the bath it really needs. I put (with the exceptions mentioned
in previous posts) all of my boards and control panels through the wash.
Every one of them works after drying. After 10 years of using this method
commercially and in my hobbies, I haven't had a single failure.

And... it's a heck of a lot faster than cleaning by hand.... : )


         - Matt


P.S. - TTL logic *IS* static sensitive, just not nearly to the extent that
MOS is.






Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066

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Received on Mon Dec 17 2001 - 11:16:26 GMT

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