electronic recording tube (ER tube)
electronic rectifier
electronic regulation
electronic regulator
electronic relay
electronic reverberation
electronic sampling switch
electronic scanner
electronic scanning = electron scanning
electronic scanning antenna
electronic semiconductor
electronic switching circuit
electronic telegraph
electronic teletype
electronic television
electronic temperature recorder
electronic text
electronic thermometer
electronic timer
electronic transcondutance
electronic transducer tube
electronic tuning indicator
electronic TV recording equipment
electronic typesetting
electronic typewriter
electronic video recording system
electronic wattmeter
electronic wave = electron wave
electronically
electronics