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Re: [TowerTalk] X99KP 12VDC RELAY FOR AMERITRON REMOTE ANTENNA SWITCHES

To: "Jim Lux" <jimlux@earthlink.net>, <richard@karlquist.com>
Subject: Re: [TowerTalk] X99KP 12VDC RELAY FOR AMERITRON REMOTE ANTENNA SWITCHES
From: "Van K7VS" <wa7fab@cdsnet.net>
Date: Mon, 27 Sep 2010 21:06:49 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
no, the company is not magnecraft for those that are interested.  It's 
actually Relay Service Company in Chicago.
Van, K7VS

----- Original Message ----- 
From: "Jim Lux" <jimlux@earthlink.net>
To: <richard@karlquist.com>
Cc: "Van K7VS" <wa7fab@cdsnet.net>; <towertalk@contesting.com>
Sent: Monday, September 27, 2010 8:20 PM
Subject: Re: [TowerTalk] X99KP 12VDC RELAY FOR AMERITRON REMOTE ANTENNA 
SWITCHES


W8JI mentioned tat they have form X contacts. That is the two contacts on 
the armature are bridged permanently, and there's no separate connection to 
the armature.  Sort of like a rf transfer switch.  Reduces parasitic c from 
armature to coil, etc.

On Sep 27, 2010, at 10:55 AM, "Rick Karlquist" <richard@karlquist.com> 
wrote:

> Van K7VS wrote:
>> THE X99KP 12VDC RSCo. SPDT RELAYS ARE MANUFACTURED BY A COMPANY IN 
>> CHICAGO
>
> The company is probably Magnecraft, in my old home town of
> Des Plaines, IL, a suburb of Chicago.  They show some
> nice off the shelf relays for antennas.  Maybe the
> Ameritron has gold plated contacts as a special.  That's
> the only thing I can think of where the OTS relays
> are less than optimum.
>
> Rick N6RK
>
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