As a ham of over 25 years experience and most of those using a ladder line
fed 80 meter doublet, I would highly recommend procuring an old Johnson
Matchbox. These units were made back in the '50s, very well made and will
match on all bands, except 30 meters, from 80 thru 10 meters.
They are a link coupled transmatch, made excusively for use with ladder line
or twin lead.
There are a lot of them advertised on eBay.

wrote in message
ups.com...
Yes, thank you..I have been thinking about modifying an existing tuner
with the balun on the output. The problem is that ALL components must
be isolated from ground. I suppose I could pull that off, but it is
not as simple as you might think, especially with a tuner that uses a
tapped inductor in a T match. I t would probably be easier to float a
roller inductor than a tapped inductor because of the switch. The
caps are usually above ground already in a T match, so thats not a
problem. I'm thinking about it, but it would be nice if there was a
good affordable balanced tuner out there.
Jim