[TenTec] Argonaut 516 Transmit into a short - stupid

[Scott Zastoupil]

Thanks for the replies fellas.

I disassembled the amp section and did some troubleshooting and found that one of the finals is blown.  It required the base of each transistor to be lifted and tested with a diode checker.  I also checked the SWR bridge diodes and they are ok.  So the plan is to order the $80 pair and move on.  I'm glad that I don't run a kw of power.

I contacted TenTec and their technician was very informative and helpful in confirming my diagnosis and suggested test procedure once I get the replacement parts.  Unfortunately they do not sell the transistors outright and only for their servicing.  

Scott, KB0KFX


________________________________
From: Stuart Rohre <rohre at arlut.utexas.edu>
To: Scott Zastoupil <szastoupil at yahoo.com>; Discussion of Ten-Tec Equipment <tentec at contesting.com>
Sent: Monday, February 28, 2011 3:00 PM
Subject: Re: [TenTec] Argonaut 516 Transmit into a short - stupid

Scott,
Contact TT and see if they have the transistors you need, and ask them for any substitutions.  Hopefully, you only blew an ALC diode.

73 and GL,
Stuart Rohre