Radio-Craft: Fighter Plane
Radio-Craft: Radio Waves Kill Plant Insects
Radio-Craft: Submarine
Radio-Craft: Talk and Hear Over a Light Beam
Radio-Craft: Tank
Radiofoni Udstilling Industribygningen
Real Club de Barcelona
Sailboat and Automobile
San Sebastian
Science and Invention: How to Build a Radio Outfit in Your Suitcase
Sfer-20 Radiola
Short Wave and Television: Radio and Airplanes
Short Wave and Television: Radio and Firefighting
Short Wave and Television: Radio Controlled Ice Sailing
Short Wave and Television: Short Waves Aid Movie Directors
Short Wave Craft: At Last! A 2 R.F. Stage Pentode Receiver That Works!
Short Wave Craft: Build This New Briefcase Short Wave Receiver
Short Wave Craft: How to Build a Simple Phone Transmitter
Short Wave Craft: How to Build the 804 Power Oscillator
Short Wave Craft: How to Make the New All-Wave Receiver