[TowerTalk] Tower Lighting

[jimlux]

Charlie Gallo wrote:
> On 4/21/2010 Mark Robinson wrote:
> 
>>   Maybe try a beefier relay and 
>> see how much longer that will last.
> 
> 30 Years ago, I'd just say "Use a Mercury wetted relay", but who knows if they are even made anymore
> 

of course they are:
http://www.mdius.com/relays.php

They're also available surplus in various places, once you figure out 
the terms to search for.

They're used for applications requiring quiet switching.