Vtg Zenith Cobra-Matic 1950’s Retro Bakelite Radio Phonograph PARTS &/or REPAIR. There is no sound from the radio. The phonograph platter does not spin but you can hear the motor running when this is plugged in. The phonograph arm is loose and needs to be reattached. Zenith Cobra-Matic radio phonograph. RPM’s: 16, 33, 45, & […]