Chassis Cleaning Process

[George Maier]

Mike has a very good point.  I'm not certain as to what the standards
are these days, but I took a NASA qualified hand soldering course in the
'60's, when I was fresh out of school and doing R&D work. The only
cleaner that NASA would accept for electronics in those days was 99%
pure isopropyl, because of the low residue.  I built an SB-200 during
the same year using all my newly acquired skills; wish I stll had it.

73's to all

George - K1GXT

Mike Souhrada wrote:

> I quit using 91% and found 99% available in gallons at a local pharmacy
> supplier. I feel its a lot safer with the low water content.
> Seems to me it cost about $14 / Gal.
>
> 70% should be avoided in my book.
>
> Mike
> Le Claire, Ia
>
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