- Accelerating waveguide structures
- Amplifiers; magnetic, pulse, and maser
- Appliance cords for e.g., electric irons, grills, waffle irons – made from purchased materials
- Atom smashers (particle accelerators)
- Bells, electric
- Betatrons
- Chimes, electric
- Christmas tree lighting sets, electric
- Clothing, electrically heated
- Cyclotrons
- Door opening and closing devices, electrical
- Dynamotrons
- Electric fence chargers
- Electron beam metal cutting, forming, and welding machines
- Electron linear accelerators
- Electrostatic particle accelerators
- Extension cords, made from purchased insulated wire
- Flight simulators (training aids), electronic
- Flytraps, electrical
- Gongs, electric
- Grids, electric
- Lamps, insect: electric
- Laser welding, drilling and cutting equipment
- Linear accelerators
- Logs, fireplace: electric
- Maser amplifiers
- Ornaments, Christmas tree: electric
- Outboard motors, electric
- Particle accelerators, high voltage
- Teaching machines and aids, electronic
- Trouble lights – made from purchased materials
- Ultrasonic cleaning equipment, except medical and dental
- Ultrasonic generators sold separately for inclusion in tools and equipment
- Ultrasonic welding machines and equipment
- Waveguide pressurization equipment
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