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[TenTec] Omni6+ keying circuits

To: "'Jorge A Mejia'" <laussana@yahoo.com>,"Ten Tec List" <tentec@contesting.com>
Subject: [TenTec] Omni6+ keying circuits
From: "Scott Johns" <petvet@adelphia.net>
Reply-to: tentec@contesting.com
Date: Tue, 2 Dec 2003 00:01:28 -0500
List-post: <mailto:tentec@contesting.com>
Jorge,

I found a description of the circuit used between the omni6+ and alpha
87A at the following website:

http://www.alpha-amps.com/html/tentec.htm


Not sure if this applicable to the Acomm...best to check with Acomm
before trying this.

Basically configure a line (ground and hot wire) from an rca connector
for the amp side with the hot going to the anode of a small diode (I
used a 2n2907, but most any small diode should work).  Configure a line
(ground and hot wire) coming from an rca connector for KeyEN. Configure
a line (ground and hot wire) coming from an rca connector for KeyOUT.
Lay the three lines down in the shape of the letter Y, and place the
diode at the intersection of the three lines.

Solder together all three ground wires at their intersection.  Solder
together the hot coming from the KeyEN wire, the hot coming from the
KeyOUT wire, and the lead coming out of the diode's cathode (the end
that has the band on it). Solder the hot coming from the amp side to the
anode of the diode (non-banded side).

I sealed mine up in a few layers of heat shrink tubing, and have been
using them for many years.

Hope this has been of some help!

73, Scott W3TX

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