From: "Roy J. Tellason" <rtellason at
blazenet.net>
I have a mercury-wetted relay I salvaged out of something or other. Says so
right on it. :-) It also indicates that it should be used in one specific
physical orientation, too.
So the advantage of those is speed?
Hi
No, it is that they don't bounce and that they don't need
a minimum current to clean the contacts. They are not
any faster than others.
Some are designed for high current operation. These look
like tubes with a coil around them. No bounce means less arcing.
Dwight