[time-nuts] Need a simple ID for some gear
David
t_list_1_only at braw.co.uk
Fri Oct 3 08:57:01 UTC 2008
> I don't know a whole bunch about microwave gear, so I need a
> little help. I came across a small box in a pile this
> evening and I don't have a clue what it is.
>
> It's a T construct, with SMAs at both ends of the horizontal.
> The vertical end looks like it's terminated to gnd.
> Internal construction in a plate which connects all three
> terminals. Above and below the plate is a ceramic triangle
> with a circular black insert. Each plate of the outer case
> has a circular magnet the same size as the black insert on
> the ceramic plates, on the external side, and there is a U
> shaped steel clamp which covers the entire assembly.
>
> This is probably a really easy question for some of you out
> there....what is it?
Opening guess- a microwave isolator, the third port being a 50 ohm load
rather than a short to ground?
http://en.wikipedia.org/wiki/Circulator
Problem is they tend to be relatively narrow band (say 5%) so I have an
expanding junk box that never quite has the one that would be useful !
Cheers
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