Our 800 MHz commercial site towers used solid state relays. Low voltage
control to a solid state relay block. Only had one failure in 10 years and
that was due to a big lightning hit. I retired 2005 but might be able to
get a schematic. I didn't burn any bridges ;-) 73, Ron W8RJL
----- Original Message -----
From: "jimlux" <firstname.lastname@example.org>
To: "Charlie Gallo" <Charlie@TheGallos.com>; "Tower and HF antenna
construction topics." <email@example.com>
Sent: Thursday, April 22, 2010 2:07 PM
Subject: Re: [TowerTalk] Tower Lighting
> 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:
> 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.
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