do crystals (xtals) go off ???

[tonymong]

hi all,

im currently trying to get back into the RC scene after many years away and have resurected an old 40mhz futaba set but no matter what gear i use nothing seems to work.... even borrowed speedos and recievers from other working cars but as soon as they get on my chassis....

nothing !!!

my question is in the title... ive tried 3 sets of crystals with the same result... but they are ALL 10year+ of age and havnt been used for 8 years

trying to justify all this to the wife and so a new set of equip is not realy on the cards

many thanx

tony