Crystals manufacturer specific?
 

Are crystals a universally compatible thing? I just bought some Ko Propo ones off of ebay, and the ad said in reply to a question "If it's an fm radio it should work fine" just wondering if this is accurate as I've just been informed otherwise :confused:my rx/tx is futaba

No the crystals have to be the same make as the tranny. you can however run different receivers (not all are compatible) than the tranny make but the crystal still needs to be futaba.

Anyone interested in 3 40mhz Ko Propo crystal pairs then? :p