How much mercury is in mercury relays?
Ignoramus23003 wrote:
Paul, I believe that this is what these switches are for, for very
frequent switching.
Really old DEC computers used them. I guess the problem was the
possibility of the turn-on surge welding the contacts of traditional
contactors, and the mercury contactors were pretty immune to
that. This was in the PDP-8 days of the 1960's.
Jon
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