ORIGINAL: FOD MAN
chrystals are not duel or single conversion, duel or single conversion is part of the circuitry within the receiver its self.
My single conversion GWS receivers require a single (specifically NOT dual) conversion GWS crystal. My dual conversion Hitec receivers require a dual (specifically NOT single) conversion Hitec crystal. My dual conversion Futaba receivers require a dual (specifically NOT single) conversion Futaba crystal. There's a reason manufacturers offer both single and dual conversion crystals, they are made different.