[TenTec] 450 Ohm feedline tuners

Stuart Rohre rohre at arlut.utexas.edu
Fri Apr 16 21:47:50 EDT 2004


I believe there is a NEW MFJ tuner with an extra control on its front panel.
It is, a ganged double PI NET, and therefore true balanced tuner; ie there
is a PI net for each side of the line.
I just saw it in last months ads in ham magazines, or even the April ads.
Don't have a model number at this site.  Might check descriptions on MFJ web
site.

As to link coupled tuners, do a web  search on google for "Z match Tuner"
and you should get a circuit or several.   On the Bama.edu web  site where
there are files of manuals to download, you can get the circuits for the
famous Johnson Match Box balanced tuners.   The Johnson had a kind of link
but it was tapped off the coil on the output side.
-Stuart Rohre
K5KVH




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