Brett...........
How about an EF Johnson Matchbox? Not a bad tuner at all. Functional
and versatile. Vitually plug-n-play.
Better still, find a c.1950's Handbook or W6SAI's book(s) and design
one. Troll ebay using the "ham radio" search and "parts" as your
subject. A good RF switch wil handle the bypass requirement. Choose a
"T" or "Pi" design that fits ur needs and cobble it together. I'd
predict you'll have a great tuner. I happen to be watching a local
ham buddie putting one together that will easily handle 5kw. Vacuum
variable caps and a nice variable inductor. He plans on tuning from
2-30mc with it with no more than 1kw. Plenty of headroom.
73 de W4MIL
Chuck
-----Original Message-----
From: [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Wed, 11 Apr 2007 2:42 PM
Subject: RE: [AMRadio] antenna tuners...
My heathkit antenna tuner has worn out I think,
I built it 20 years ago or more, and I think its shot.
All the silver plating has worn off the roller bar, which
sometimes results in an open which blows
the diodes out in the swr bridge.
I took it apart and cleaned things up, but I think
its time for a new tuner.
I would also like to be able to bypass the tuner without
moving coax, so the rigs with built in tuners can
do their automatic thing.
For unbalanced antenna's, what is available that can handle say
3000 watts pep?
Some headroom is a good thing, no?
I know better then to buy anything MFJ...
Anything out there that holds up to AM?
Brett
N2DTS
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