What about two 50 ohm lines in parallel? Look at  "Parallel-Connected Coaxial 
Cables" at :
http://www.cebik.com/trans/spcoax.html

73, Joe, K1ike

 -------------- Original message ----------------------
From: "kq2h" <[EMAIL PROTECTED]>
> Perhaps a little off topic subject.... Does anyone know of a source for
> 25 Ohm, 0.10" diameter flexible coax cable? I am in the process of
> converting a 500 Watt Quintron QT-7095 station to 10 Meters. The RF
> amplifier uses four 28V MOSFET's matched to 50 Ohms with a Guanella 4:1
> transmission line transformer. Unfortunately, the amplifier is tuned to
> 36 MHz. The Guanella transformer gets very hot at 29 MHz while output
> power is low. It looks like I may have to rewind it, but am unable to
> find a source for 25 Ohm mini flexible cable. The closest thing I can
> find is semi-rigid, which is no good for this application....Alex
> 
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>  
> Yahoo! Groups Links
> 
> 
> 

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