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Re: [TenTec] Eagle & Heath SB-200 Amp

To: tentec@contesting.com
Subject: Re: [TenTec] Eagle & Heath SB-200 Amp
From: Bob McGraw K4TAX <rmcgraw@blomand.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 25 Feb 2020 10:39:31 -0600
List-post: <mailto:tentec@contesting.com>
WOAH!    STOP!    If the amp has not been modified for the KEY circuit, it has 120 volts on the center pin of the RCA connector.   If this is connected to the Eagle it will immediately destroy the Eagle PTT Amp control circuit.

The amp relay must be changed to a 12 volt relay and other circuit modifications done,  OR you must use an Amp Interface between the radio and the amp.

Who ever gave you the information DOES NOT know what they are talking about.   This is normal for most hams unless they have actually interfaced the SB-200 to the Eagle.    MFJ did make an interface suitable for the application.

As Will Rogers said: "it's not what people know that concerns me, it is what they know that is not correct that gives me concerns".

If you need additional information, I'll be glad to assist.

73

Bob, K4TAX


On 2/25/2020 8:13 AM, Richard Wagner via TenTec wrote:
I’ve never dealt with an Amplifier before. A friend gave me a Heath SB-200. It appears 
I have to make a connection between the AMP KEY terminal of the ACC-1 accessory connector and 
the AMP KEY Socket of the amp. A plug for the socket and short jumper wire were included with 
my Eagle. This appears to be all that is needed. I’ll connect from the Eagle to the 
Amp then through my Antenna Tuner to the Antenna. Does this seem OK?

Rich Wagner
K4MZE
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