This Short Crystal MUST be used ONLY in the corresponding SHORT Crystal Receiver. This Crystal WILL NOT work in the regular receivers.
Crystal Sets - Ideal for replacements or frequency options. AM Crystal Set. Each set includes both transmitter and receiver crystals. FM set replaces crystals in older Futaba systems
AM crystals available for 27 MHz or 72/75 MHz systems. Dual Conversion FM Crystal Set is for all Futaba "DF" or "DP" receivers.