They are not, also any metal is a concern.Hatta wrote:Capacitors should be water tight, unless they're already starting to fail. In which case, they should be replaced anyway. Anyone with a collection of retro gear like that has probably changed a few capacitors in his time. And, like I said this is a last resort method. If you've tried everything else and it doesn't work, running it through the dishwasher won't break anything.
Some clarity:
CRTGAMER wrote:Corrosion=Water + Air + Cathode to Anode