Corrosion

Battery replacements ? Charging resistor ?

Patching traces

Make sure to use the appropriate gauge when patching power traces !

• "Kynar" wire: Great. Get some good one (high-temp plastic).
• Magnet wire: Copper wire coated with insulating varnish. Good, can be extremely thin and hard to solder.
• Telephone wire: Can do the job, but very rigid (and ugly).
• Paper clip: No.

• Tape: If temporary, why not. Might leave sticky residue.
• Hot glue: Good, just don't make a mess and don't apply it to chip pins.
• Nail varnish: Good, can take a while to dry. Easily removed with acetone.
• Random glue: No, probably won't stick or will stick too much. Can also eat the board up.
• Epoxy glue: NO. NEVER.