In message <199605011929.PAA19460@sable.cc.vt.edu>, Mike Keitz writes:
>A resonator usually looks like a little plastic cube.  Some of them have two
>leads and some three.  The three-leaded ones have the loading capacitors
>built in.

        I guess I have seen them or at least a close cousin.  I salvaged
the hand set of a cordless telephone and got a filter unit out of the receiver
section.  It is a little plastic cube with three leads and filters the signal
before it gets to the discriminator.  I don't know if this is the same type
of device as the resonators used for oscillators or not, but the description
sounds like a ceramic resonator.  I would expect the filter resonator to
have even worse Q than one used for an oscillator since it should have a
pass-band wide enough to let through a FM signal with 4 or 5 KHZ deviation.

Martin McCormick WB5AGZ  Stillwater, OK 36.7N97.4W
OSU Center for Computing and Information Services Data Communications Group