[Antennas] WTD: Balanced Output Tuner Plans

[Jim Reid]

> I'm wanting to build a tuner with a balanced output.  Can anyone 
> point me to plans for one?  

Detailed info on the only two commercial units of which I
a aware is discussed in much detail here:

http://www.cebik.com/link/link.html

Photos will show you how the components are typically laid out.

Component values vs band,  etc. and a lot of other info about
the balanced tuners are here:

http://www.cebik.com/link/link5.html

Construction ideas and hints are also given at the above URL.

A lot of "theory" of balanced tuners can be found here:

http://www.cebik.com/link/link0.html  .

All the above info is by L.B. Cebik,  W4RNL.

Have fun with the project.  I modified my 40+ year old Johnson
kWMatchbox,  per LB's info.  That is,  added taps to the primary
link coil,  and added tuning C in series with the link coil.  Makes
the unit much easier to tune when the primary circuit is brought
to resonance at the desired frequency of operation.  Then the
secondary capacitor settings are a snap.  Both done using an
antenna analyzer switched into the circuit replacing the trans-
ceiver for tune up.

73,  Jim  KH7M