skipp025 wrote: > You didn't say how you'd cleaned the surface in the past. I would > only use a Brass or hard Stainless Steel brush to avoid embedding > non same metals into the plunger or contact surface. Using a common > steel wire brush is not a good idea. > > s.
Also NEVER use an over the counter chemical treatment to clean the surfaces. Products like TARN-X are not acceptable for cleaning electronic equipment; relay contacts, duplexer guts, etc! Kevin
