On Mon, 23 Feb 2004 15:30:09 UTC, Chuck Harris
wrote:

Spray cleaners like 409, work too, spray liberally, and
scrub with a brush, and rinse with pure water, distilled is best.
Drying in a convection oven (fan circulation) at 140F finishes up the
job. A cardboard box with a fan, and a light for a heater works too.

careful with 409, I've seen it degrade the panel lettering.

I de-smoked an SB-303 by hand wiping every exposed wire, part,
surface using a clean cloth damped with a very dilute detergent
solution. It took a lot of work but I was recovering from hand
surgery and needed a punishing amount of effort as physical therapy.

Gently and firmly rubbing small components for hours is excrutiating
pain but it really strengthens your fingers.

de ah6gi/4 www.kiyoinc.com/heathstuff.html