Contact Tarnish Help

[Asimov]

Speaking of tarnishing, the mode switch fingers in my old rca vcr
(used as a tuner only) tend to turn black after about a year or so.

When this happens it will try to unload a non-existent tape and then
shuts off. After cleaning the mode switch fingers it works fine
thereafter for another year.

What would be a good recommendation on some type of oil or grease to
stop the silver from tarnishing completely black and yet maintaining
a good contact?

Asimov
******

.... I worked hard to attach the electrodes to it.

 

[exray]

Asimov wrote:

Speaking of tarnishing, the mode switch fingers in my old rca vcr
(used as a tuner only) tend to turn black after about a year or so.

When this happens it will try to unload a non-existent tape and then
shuts off. After cleaning the mode switch fingers it works fine
thereafter for another year.

What would be a good recommendation on some type of oil or grease to
stop the silver from tarnishing completely black and yet maintaining
a good contact?

Asimov
******

Try the Caig website. They have various products which are very good
and highly recommended. The plain old DeOxit D5 spray is used by most
people and I find it to be very good with long lasting results - enough
so to where I've given up on any other type of sprays. The 'pump' spray
version isn't as effective and I wouldn't recommend it.
Some of the other products they have may give better results on silver
contacts.

-Bill M