RE: what was your first radio system?
An ACE kit from ACE at Higginsville, Mo. A tube and transistor receiver, AM 27 MHz. Transmitter was a 1 foot cube sitting on the ground with about a 11 foot long antenna bolted to it's side. A push button to key the transmitter on the end of about a 6 foot cord. Rudder only with the escapement rubber band powered.