These
crystals
are compatible with most popular JR radios and receivers.
Compatible
with both PCM and FM systems. All JR are Dual Conversion. These are for 72Mhz (aircraft) frequencies.
Crystal
sets come with (1) Transmitter and (1) Receiver crystal.
Not
all JR crystals are in stock, some are special order, and may take
a week or more to arrive. If you see the ÔIn stockÕ tag below, then you can be assured it will ship immediately.