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Re: [TenTec] True QSK?

To: <tentec@contesting.com>
Subject: Re: [TenTec] True QSK?
From: "JAMES HANLON" <knjhanlon@msn.com>
Reply-to: tentec@contesting.com
Date: Fri, 12 Nov 2004 10:39:43 -0700
List-post: <mailto:tentec@contesting.com>
W9OY wrote:

> I built my first "QSK" amp in about 1981.  ...  I made the relay
> out of a bunch (around 12)of parallel surplus glass
> vaccuum reeds that I wound a common coil for ...

Wow!  You probably didn't "hot switch" them which is one reason why they 
worked.  I am still using a mercury wetted relay to switch the antenna in my 
QSK system.  A Western Electric 276 type, rated for switching 5 amps in 
telephone service, handles the 600 watts output of my SB200 on CW into a 50 
ohm load quite nicely.  No I don't hot switch it either.  And it makes a 
barely audible "plink" when it switches.

Jim, W8KGI 
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