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Re: [TenTec] Orion 565 Amplifier Keying Question

To: tentec@contesting.com
Subject: Re: [TenTec] Orion 565 Amplifier Keying Question
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Reply-to: geraldj@storm.weather.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 21 Sep 2006 18:33:51 -0500
List-post: <mailto:tentec@contesting.com>
On Thu, 2006-09-21 at 17:15 -0700, george fritkin wrote:
> Use a simple diode or gate.  1n4148 or 1n4001 will
> should do it.  Tie diode anode together and this gets
> connected to amp.  The individual cathodes get
> connected the respective transceiver.  And you will
> love your ORION
> 
> --- Rob Santello <Orion@drumon.com> wrote:

When one output is open collector, and the other is open contacts,
wiring them in parallel makes a WIRE OR, and the diodes aren't needed as
far as I can tell. It could be that the 1N4148 will have a volt or more
of drop depending how much current it takes to key the amplifier and
that diode drop may keep it from working right.
-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer

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