Greetings Gary,
Sorry to hear of your frustration with the Argonaut V.
If you get to the point of parting it out, I can use a volume control
dual pot. Mine is beyond repair due a very bent shaft and broken
internals. (shipping damage!) I only need the pot but if you would be
parting at board level only I might be interested in the entire board.
Thanks, 73,
-Lee-
WA3FIY
------ Original Message ------
From: "Gary J FollettDukes HiFi" <dukeshifi@comcast.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: 4/24/2016 1:49:20 PM
Subject: Re: [TenTec] Come On Guys
Back to something more topic-related:
I have an Argonaut 5 that is, perhaps, the least repairable radio even
built.
I can’t believe that the same design team that gave us the Orion (the
MOST repairable radio ever produced, IMHO) could have produced this
disaster.
I am at the point of parting it out.
Here is what works:
1) Display
2) Logic board
3) Power amp
The analog board receives well and the radio makes a nifty receiver.
In transmit, the thing puts out about 8 watts with a frequency of about
4 MHz regardless of the band switch setting and has severe distortion
(lots of peaks on the spectrum analyzer).
The circuitry past the 450 KHz filter from the DSP is oscillating to
produce this output at the antenna connector. (I have already done the
obvious, replacing all of the little electrolytic caps on the board.)
My hesitance to pursue it further stems from the fact that a previous
person attempted to correct the problems and left enough things out of
sorts as to foil logical troubleshooting.
To make matters worse, it would appear that Ten Tec had about 6 people
drawing up different parts of the schematic and not one of them knew
the telephone number of any of the others.
The result is a schematic that is a hodgepodge mess, part of it
readable, part not, not sell-consistent and completely impossible to
link in a unified drawing such as I made for the Collins KWM-2 (and
published).
I have too much to do to try to make cable fixtures to allow
troubleshooting this thing with the analog board on the desktop. If one
had these three cables, the process would not be TOO bad…
I first offer this complete for $300. Cosmetically near perfection.
If no interest, then let me know what parts you need and I will part it
out.
Gary
W0DVN
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