The term was Bi furcated - having two parallel contacts increases contact
reliability significantly. Particularly important in telephone switches
Norm W4QN
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Message: 1
Date: Tue, 28 Sep 2010 13:14:14 -0400
From: hanslg@aol.com
Subject: [TowerTalk] Fwd: X99KP 12VDC RELAY FOR AMERITRON REMOTE
ANTENNASWITCHES
To: towertalk@contesting.com
Message-ID: <8CD2D47B591770F-12D4-162B@webmail-d061.sysops.aol.com>
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LM Ericsson, Sweden (the old telephone manufacturer) had a patent many
years ago regarding double contacts in relays. They showed that the
reliability of a relay was major increased when you had two relay contacts in
parallel. I believe you still find a term for this, just can't remember what.
Hans - N2JFS
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