[Amps] Asynchronous coax matching transformer

Joe Subich, W4TV lists at subich.com
Fri Jul 31 17:42:32 PDT 2009


Try Google for "1/6 wave transformer:" 
   http://www.k1ttt.net/technote/matching.html 

73, 

   ... Joe, W4TV 
 


> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Carl
> Sent: Friday, July 31, 2009 8:23 PM
> To: amps at contesting.com
> Subject: [Amps] Asynchronous coax matching transformer
> 
> 
> Does anyone remember the formula for matching 50 to 75 Ohms 
> with 2 very 
> short lengths of coax?
> If I remember it used a 75 Ohm section at the output of the 
> amp, and a 50 
> Ohm section to the CATV hardline. Frequency dependent of course.
> 
> Its been about 25 years since I built one.
> 
> Carl
> KM1H
> 




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