Mercury use (WAS RE: hospital surplus)

[Chuck Guzis]

>On 3/23/2006 at 9:21 PM Jim Beacon wrote:
>
>>It is also often used in high speed relays, especially for teleprinter
>type
>>circuits - we had some mainframe / telegraph interfaces with mercury
>wetted
>>relays in them, in operation,  until about 8 years ago

I've still got a bunch of telco mercury-wetted sealed DPST reed relays.  I
think this wasn't because of current, but rather that the contacts probably
stayed quiet over the life of the equipment.

Cheers,
Chuck