The article is here :
http://www.pa3csg.hoeplakee.nl/Boek/BoekH1/art1-26.html
This works very well on 432, I have tried it to see if the principle works.
I used RG 142 B/U which didn't get that warm at 500 watts. If you make the
lines from large diameter hard line and 7/16 connectors then it will handle
lots of power.
Alternatively you could scale the ring coupler in the following article.
http://www.ham-radio.com/n6ca/appnotes/1296hybrid/1296hybrd.html
73
Conrad G0RUZ
> -----Original Message-----
> From: amps-bounces@contesting.com
> [mailto:amps-bounces@contesting.com] On Behalf Of GM3SEK
> Sent: 17 January 2006 22:55
> To: Werner Hasemann
> Cc: Amps@contesting.com
> Subject: Re: [Amps] 3dB Hybrid coupler
>
> Werner Hasemann wrote:
> > Hi, I would like to couple 2 equal 70cm-amplifiers together
> and need
> > at least two hybrid couplers, which are able to transfer
> 200wtts pep
> > on each arm. Where can I get those parts ? Is there any
> chance to build them ?
>
> Yes, you can build 'rat-race' couplers with coax:
> KL7WE, Combining Amps for High Power, Central States VHF
> Convention 1988, p149.
>
> It doesn't seem to be on the web, but I will be able to
> supply a copy if you e-mail to remind me in about 2 weeks time.
>
>
>
> 73 from
> Ian GM3SEK
>
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>
>
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