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Old August 7th 07, 01:54 AM posted to rec.radio.amateur.antenna
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Default Any homebrew auto-tuners?

On 6 Aug, 16:09, Jim Lux wrote:
Hank Zoeller wrote:
Rick (W-A-one-R-K-T) wrote:


Are there any construction articles around anywhere that describe an
auto-tuner similar to the LDG and SGC offerings?


http://www.miami.muohio.edu/presiden...uner/ezhistory...


That's the stepper motor controlled one.. Note that he used a switch to
switch between fixed inductors rather than a roller inductor. Also note
the comment about 3 months of evenings and weekends to build it.



http://www.somis.org/bbat.html- Hide quoted text -


- Show quoted text -


Why not make a duplicate tuner of that which is in your radio now
except use
higher power units. You should be able to control this unit using the
existing
circuitry in the radio. Actually a purchased toroid transformer with
several taps would
probably the quickest way to go using a multipole switch.
Art

 
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