This is a complete Airtronics airbourne flight system for either an airplane or a helicopter. It includes a 92765 dual conversion, narrow band receiver with a crystal for channel 12. Also included are four 94102 servos, a 96253 SG-X gyro system (including 94103 servo for tail rotor control), a switch harness with charge connector and a 600 ma battery pack. This system was mounted in a helicopter, but never flown.
This item is a Futaba FP-R127DF seven channel, dual conversion receiver. The reciever does NOT come with a crystal. It is a high band receiver.
This item is a never used Hitec receiver crystal for 72 Mhz, channel 18. This crystal is for is a SINGLE conversion receiver. I bought it hoping it would work in a Futaba receiver....it will not.