ok...my head is spinning here :spinnyeye

so, if i have a rx and tx on channel 25 and I crash the plane and damage the crystal in the rx, I can't take a crystal out of a rx on channel 15 and take the crystal out of the tx on 15 and swap it with that one that was on 25 and go flying? same radio, same reciever, just 2 new crystals. what if I buy a new set of crystals on 25...Can i put these in and go flying?