Topband: Capacitor for Inverted L

[Lup Schlueter]

Hans Gatu SA7AUY had a very cool idea for a selfmade variable power 
capacitor.
It has about 300pf, but as you will agree, there is no limit for 
higher values.The material
will surely agree every flash over!

See self:   http://www.heathkit.nu/heathkit_nu_AMU.html

55 Lup, DJ7SW



Am 13.10.2011 13:05, schrieb Gary Smith:
> I used to use an ugly, beat up 500pf vac variable at the base of my
> 160M inv-L&  used the MFJ SWR Analyzer to adjust it. The CAT-5 cable
> I used for wire was brought up over a tall tree and chafing from the
> wind blown branches wore through it 1/2 times a year. After the
> antenna came down the last time I used a more rugged wire and cut it
> 135' long and have it connected to a radial plate which serves as a
> common tie-in for my separate 160, 80, 40, 30 meter vertical wires
> but also my butternut HF9V which I use for 20&  up.
>
> The 160M ant will not cover the whole band but as I rarely go above
> 1.9 Mhz, it's perfect and needs no base loaded cap.
>
> YMMV.
>
> 73,
>
> Gary, KA1J
>
>> I plan on adding an Inverted L soon, and have seen a few websites that
>> recommend about 1000pF at the base to tune it.  What voltage cap should I be
>> looking for if I am going to run about 600W?
>>
>> -- 
>> *Clint Talmadge - W5CPT - *
>> _______________________________________________
>> UR RST IS ... ... ..9 QSB QSB - hw? BK
>>
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>