The best Argosy mods I ever saw ( and incorporated) were in a Ham Radio
Magazine, roughly 1986 vintage. These included audio level circuits to cut
out phase noise, as well as changes in IF frequency to 9.0000 MHz to use more
easy-to-find crystal filters, etc. Other AGC mods, audio mods, etc were all
great.
The big TT change in serial numbers was roughly 864 (memory???) or so on the
Argosy I which incorporated a better mixer on the front end. Made a
significant difference to techies but only to the trained operators.
TenTec did not incorporate any of these changes in the Argosy I or II.
I'm recalling from memory so don't ask specifics.... better yet find someone
with, or even go out and buy the CD with Ham Radio Magazine articles from the
'80's and read / modify it yourself.
Good luck... it's worth the effort if you do it. I fully mod'ed two units
and finally sold the last one two years ago. Really nice rigs after the mods
especially if you cascade two switchable 8 pole crystal filters at contest
time!
Bill K5BDZ
Bill K5BDZ
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