RE: OT Cleaning Electrical Components
I use a sonic bath to clean mobile phone circuit boards.
If you put it in a jiffy bag I can give it a bash. Stripped it to the board.
Strip it and give it a wash under tap with nail brush.
Do not be to harsh, might dislodge solder. Also just get it wet and rinse dont dip it in there.
Stick in the oven to dry out.
Quite important all moisture is gone or it will short and still not work.