[AMRadio] High-power tuners


Geoff/W5OMR ars.w5omr at gmail.com
Fri Dec 8 09:53:55 EST 2006


A.R.S. - W5AMI wrote:
> John,
>
> I don't have a BC tx, but my rig would compare in regard tuner
> requirements.  I home brewed a link coupled tuner, and think that's
> the only way to go for a big power AM tuner to open feed line.  I got
> a very large rf coil with rotating link off epay several years ago,
> along with a split stator air variable of about 250pf per section and
> probably 7+kv rating.  Very simple to build if you can find or make
> the parts.  I've tested the tuner into a makeshift load (dummy) of
> about 200 ohms with almost 3KW and the coil did nothing but get a
> little warm after a minute or so. 

What bands does that cover, Brian?  Is it good for anything other than 
80/40m?

Got a picture of this thing you can share with us?

--
73, Seasons Greasing, etc



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