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Re: [Amps] M57762 multiple hybrids for 1296 MHz?

To: Gärdin Petter <petter.gardin@saabgroup.com>
Subject: Re: [Amps] M57762 multiple hybrids for 1296 MHz?
From: George <K4GVT@comcast.net>
Date: Wed, 18 Mar 2009 07:33:07 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Hello Petter, the easiest way is to use Wireline to create two (one for 
input, one for output) 180 degree phase shift transformers.
This is what is done in the DEMI 1296 amplifiers. the links below are 
for the 60W and 120W 1296 amplifiers using this principal.
I have made these transformers with excellent results.

http://www.downeastmicrowave.com/PDF/2360pa.pdf
http://www.downeastmicrowave.com/PDF/23120pa.pdf

Here is a link to SAGE cable were you can purchase the wireline needed 
to make the phase shift transformers.
http://www.filss.com/comp/hybrids_couplers/Wireline%20Rev042806.pdf

Regards,
George, K4GVT




Gärdin Petter wrote:
>  
> Hi everyone.
> Does anyone have or know of a design with multiple hybrids M57762 for 1296 
> MHz.
> My aim is >100W output.
>
> 73 de SM3PXO Petter
>
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