The latest edition of the ARRL handbook has a balanced tuner with the
balun (1:1) on the input of the tuner. I think that this is the way
that most balanced tuners are being designed these days, see the
Palstar (http://www.palstarinc.com) as an example. I am not certain
about the Bliss Balanced Tuner (whose web site I have forgotten).
Ed, N5EI
-- 
Edward A. Feustel               Research Associate
efeustel@ists.dartmouth.edu     Institute for Security Technology Studies
phone - (603)646-0671           Dartmouth College, Hinman Box 6226
fax   - (603)646-0660           Hanover, NH 03755
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