Age 12, kit built mac gregor carrier wave tx &rx, all valve and high voltage. Wouldn't put it in a plane, this was radio effected modeling, not radio control so took to boats. Aerokits sea rover and M.E Snipe diesel.
Moved on to a build from rcm&e magazine. Simpletone &supertone with kinematic actuator. Still got it and working. Huge diference in relative costs with today. The first tx &rx kits cost more than an average weeks wage, and months of pocket money, lawn cutting and papers delivered for me. We all seemed to have more actual fun in those days. People built more and worried less about gizmos. I must be getting old!
Charlie.