From: John Woodgate
Subject: Re: Low leakage parts
Date: Sun, 5 Jan 2003 16:19:30 +0000
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Sun, 5 Jan 2003 19:18:15 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Mike Monett
wrote (in <3E184B38.588B@sneakemail.com>)
about 'Low leakage parts', on Sun, 5 Jan 2003:
>Anything special about the alcohol? Some have mentioned that plain
>store-bought isoprop is unsuitable, but I've cleaned keyboard switches
>with it and they measured over 1 gigohm, which is the top range on the
Measure it after a day or so in a humid atmosphere. Some ionic compounds
dissolve in alcohols and of course they dry out to the anhydrous form,
which is often hygroscopic. Calcium chloride is a particularly
significant example, because of its extreme affinity for water, but even
the ubiquitous sodium chloride is slightly soluble.
Of course, you may well have been lucky - up to now.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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