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[Yaesu] Fw: Use FT-897 with tube type Dentron amplifier

To: <yaesu@contesting.com>
Subject: [Yaesu] Fw: Use FT-897 with tube type Dentron amplifier
From: "Dick Zseltvay" <dickzs@comcast.net>
Date: Thu, 21 Feb 2008 12:42:30 -0600
List-post: <yaesu@contesting.com">mailto:yaesu@contesting.com>
----- Original Message ----- 
From: Dick Zseltvay 
To: yaesu@contesting.com 
Sent: Thursday, February 21, 2008 12:41 PM
Subject: Use FT-897 with tube type Dentron amplifier

I have a Dentron amplifier that I have been using with a FT-1000D. The 
amplifier is connected to the Transmit Ground on the FT-1000.

I would like to use the amplifier with a FT-897D. I have a relay box that I 
bought from Yaesu years ago as an interface from a FT-757GX to the amplifier. 
The relay box contains a normally open relay. As best as I can remember, the 
FT-757GX's   TX ground was attached to the FT-757 and the amplifier was conned 
to a PTT jack. There are two connectors on the amplifier side of the relay that 
provide 13.5 VDC - I can not get the relay enclosure open far enough to see 
where the 13.5 V goes. I don't recall using the 13.5 V leads.

Any one with experience in using the FT-897D (or FT-857) with an old style tube 
amplifier that can help me? Does the relay box I described above provide the 
interface needed to connect the FT-897D to the Dentron amplifier? Have I got 
enough isolation with this relay box?

Dick, KC4COP
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