We had a 1500 watt 70 MHz circulator go bad. I disassembled it to see what failed. IIRC there were 9 capacitors and at least 3 inductors along with the ferrite ant tuning magnets. Really makes a TV transmitter quit when the circulator between driver and final fails. Quite a site to see the capacitor that blew apart and burned from the plasma.
Not all circulators are ferrite only. 73 Glenn WB4UIV At 12:08 PM 10/24/07, you wrote: >At 10:10 AM 10/23/2007, you wrote: > > > >No, it's not linear. First off, it doesn't satisfy the superposition > >principle since it will produce harmonic when fed by a pure sinusoid carrier > >(hopefully we can agree to that without added discussion), so right off the > >bat it's nonlinear. Furthermore, it's also non-reciprocal; what enters port > >1 exits port 2 with little loss, but the converse is not true. > ><---I though it was linear unless it becomes saturated. Circulators >are ferrite devices and as long as the ferrite core isn't saturated, >it remains linear. > >Ken >(back to Circulator 101 class I guess) > > > > > > >Yahoo! Groups Links > > >
