Sean, maybe you will laugh, but my brother which is an microwave
specialist have built a 10 GHz circulator himself. Is not an easy job, it
required a lot of fine mechanics but is perfectly possible, using amateur
working conditions. ( plotter, masks etc, ceramic support and ferrite )

Just a thought,
Regards, Vasile

On Sat, 15 Dec 2001, Sean H. Breheny wrote:

> Hi all,
>
> Does anyone have (or know where I could find at a reasonable price) a
> circulator for the 3.45 GHz amateur band? I'd prefer one with some type of
> coax connectors, not waveguide. I'm having a heck of a time trying to find
> one of these! Can't find any surplus or used, and the one company I
> contacted so far which makes them has not returned my email (presumably
> because I'm not a high volume buyer).
>
> Thanks,
>
> Sean
>
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