Thermochemical combustible gas detector
Three phase controlling system
Three phase primary power regulator
Three-phase AC voltage control circuit
Thyristor tap changer for electrical inductive apparatus
Thyristor-firing apparatus using an acoustic surface wave device
Timing control for AC power circuit
Transformer circuit
Transformer control device
Transformer flux compensation circuit
Transformer having improved voltage and phase characteristics
Transformer voltage regulator responsive to input variations
Transformer with a ferromagnetic core for d-c and a-c signals
Transient turn-on protection circuit for power supplies
Transient voltage suppression circuit
Transistor bias circuit
Transmission network including flux compensation
Trimmed superconductive magnetic pickup coil circuits
Trunk interface circuit with current compensation
Tube-insulated shell-core current transformer