Originally Posted by
sawmilleng
Etack, Army,
Tell me more about the solid silver contacts in the little ice cube relays. 20-40$ in silver means just about a troy ounce of silver in there! I always thought they were silver contacts, just VERY small as they are only rated for a couple of amps.
And the pre 196X relays--solid silver before, thin coating after?? Is there a market for the old, solid contact relays?
Interested in this...I didn't realize there was a major change in how they were built.
Jon.
The Ice cube relays will have several different styles of contact depending on required reliability. Some are soldered onto the buss some are punched through. Its a lot of work to get at them but its not hard work. These contacts will be silver cadmium contacts. The cadmium makes them harder so they burn up less frequently.
The Clad style refine in the 5%Ag range and are less desirable to refine.
Eric
Sirscrapalot 
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