A cheaper and environmentally friendly method is to use an aerosol
compressed gas duster and invert the can so that liquid comes out.
My favorite is a four-can package of "Falcon Dust-Off" from Costco for
about ten bucks, in the computer section. The cans contain liquid
difluoroethane, which has no chlorine component and is ozone-safe. I
have not found any evidence of corrosion with this product. I agree
with Mike that chilling each suspected component in turn is a good way
to find those that are temperature-sensitive.
73, Eric Lemmon WB6FLY
Mike WA6ILQ wrote:
>
> ... The simple way is to get a can of freeze spray and zap one component at a
> time... Aerosol canned ethyl chloride is a specialty item and priced as
> such. You also need to wash the zapped parts with alcohol when you are done
> - cheap brands of freeze spray have other things than propellant and ethyl
> chloride in them, and the contaminants can corrode certain alloys on
> component leads...
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