Originally Posted by
alexhahner
Hello everybody; I have one question about a vintage FUTABA RC SYSTEM. It says PCM but I really do not know if it does use crystals. I see a crystal in the receiver but can not find a crystal in the transmitter. How does it work?
Almost certainly there will be a crystal for the transmitter. Most likely the radio has a module unit that will house the crystal within it. There should be tabs on two sides of the module to remove it and get to the crystal. Like the previous poster said more info or picture will help.