< Do you have to stop it before it goes through the dry cycle? On mine I can set it for a low energy dry so that varies. I'd suggest letting it start and after five minutes pull it out (warm board will dry faster). < I have a '64 I don't value especially that I'll try this on... anything < else I should know before this venerable machine gets opened up? Anything that can trap water like dip switches or adjustable coils will take a long time to dry. Baking in a 170-180F oven will accelerate drying with little risk. I've done this to PDP-11 and VAX boards, a TRS80 and many other boards that were real grungy. The process used at the factory is very similar to a dishwasher (sometimes is!). Allison