Hi Fred, 

>  Fred Townsend <[EMAIL PROTECTED]> wrote:
> I'd like to second Skipps comments and add one of my 
> own. At the factory we used ordinary dish washers (until 
> we got the commercial washers) to clean PC boards. 

Also guilty of doing said...  although I don't use the 
dishwasher for electronics parts any more. 

> Spic and Span is a little harsh. For general cleaning, 
> including automatic dish washers, useArm and Hammer 
> baking soda.

I use Palmolive Liquid Dish Soap in warm water for the 
more sensitive stuff.  I've tried and used Spic and Span, 
TSP, Pine-Sol (or equiv) and 409 on the more mechanical 
items.  It's hard to beat the grease cutting power of 
original powder Spic-and-Span.  "Why that micor cabinet 
looks almost new... "

For some sensitive electronics items (like variable caps), 
a tumble in crushed Walnut shells does the trick. Now the 
shells are replaced with plasitic cleaning media bought 
from local gun stores. 

> If you think someone has used an acid flux (sometimes 
> necessary to solder nickel or steel) clean with ammonia 
> before the baking soda. Finally if you have rosin flux 
> isopropyl alcohol works well. Don't use rubbing alcohol 
> (contains water) or use alcohol in the automatic dish 
> washer (it will burn).
> Fred AE6QL

Thanks Fred... for dry solder flux I've been using Acetone 
on a sturdy Q-Tip. 

All these hints are very handy to know. 

73's
skipp 







 
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