On 11/11/2014 22:42, Stan Katz wrote:
That clinches it. Brooke's Tek tour reminded me that I have on file a
"Service Scope" from Tek entitled "Washing Your Tektronix Equipment". I can
follow those instructions less the drying for 24 hours in an oven at 125F.
Doing so will probably have me kicked out of the house by the wife. A hair
dryer will have to suffice.

The use of a dishwasher, which I could pull off without being found out by
my spouse, does require removing all the pots. Anyway, I think that
dishwashing is most appropriate for boards with all surface mount chips.
Forty year old electrolytics (all of which surprisingly have tested good)
might balk at being machine washed.

Stan

On Tue, Nov 11, 2014 at 11:34 AM, Brooke Clarke <bro...@pacific.net> wrote:

Hi:

My second oscilloscope was a new Tek 515 which I got for the student price
and picked up from the Tek sales office on San Antonio Rd in Palo Alto.  On
the tour they showed me the washing booth where they used a water soap
solution to spray wash the complete scope.  There were no parts in the
design that would absorb water.

When washing semiconductor wafers after the DI water rinse they used an
alcohol rinse then a compressed clean air blow off.  The alcohol sucks up
the water and what small amount that's left after the air evaporates
quickly.

Mail_Attachment --
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html

David C. Partridge wrote:

And should you be prepared to remove the pots, you could run it through
the dishwasher ... (if it works for Bob Pease, it works for me too).

Regards,
David Partridge
-----Original Message-----
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of ed breya
Sent: 11 November 2014 07:44
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] HP419A Meter Pegged to Right

If you're talking about washing the board only, I'd say go for it.
:
:

Ed

At 07:28 PM 11/10/2014, you wrote:

I'm trying to bring an HP419A back to life.
:
:

Any votes for a water wash? Any better ideas?

  _______________________________________________

A quick wash down with pure isopropyl alcohol afer the wash will help draw out a lot of the residual water. Some sources of IPA seem to have a significant meths content as in the past a bad batch crazed some polystyrene capacitors, so check before use on a whole board.
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