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[TenTec] ARGOSY 2

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: [TenTec] ARGOSY 2
From: ROLAND HOWELL via TenTec <tentec@contesting.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 14 May 2022 20:00:55 +0100 (BST)
List-post: <mailto:tentec@contesting.com>

Hi all, i hope i have not sent this request for advice twice but here goes (again).

I have the above radio, the fault is no rf out either in the 5 or 50 watt setting.

There appears to be no output on connector 39 on the exciter board, i have checked all voltages on U1, and all the trannies, all appear to be within spec, just a few millivolts out.

There is no increase in current rate when changing from RX to TX, voltages appear to be ok on the finals board.

What is U2 , a quad uhf modulator barrier diode array, that is the only item that i am unable to test, is there a suitable replacement?.

thanks in advance


Snowy G0HZE

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