Phil
I would believe it could be the contacts if you had at least one bad putting
out
about 3-4 watts.
I bet one of your final transistors is bad. I had the same thing with a 509
that I bought at hamfest. Very low power out on all bands. I pulled the
transistors on the PA board, checked and sure enough one was bad. Replaced them
with a matched pair and it was like new again.
They are pretty awesome when they are working. You may need to do some
scrounging for replacement transitors. but they can be had. The TenTec
originals
are long since out of production.
73 and Good Luck.
Jack WN5A
________________________________
From: Phil <pgrundy1@aol.com>
To: tentec@contesting.com
Sent: Tue, February 26, 2013 2:25:41 PM
Subject: [TenTec] low power 509 Argonaut
Had a 509 for years, so I got another at a ham fest, seems to work OK, except
low power.
10M=.7 W
15M= .5W
20M=.5W
40M=.1W
80M=.05W
Any help? Rig has been sitting for years, but it cleaned up nice, no mods as
far
as I can see. Would it help to unplug all the boards, and clean the prongs?
Phil WB5PG
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