Variable impedance circuit having a linear characteristic...

Variable mutual coupling circuit employing transformers in...

Variable phase shifter and a system using variable phase...

Variable phase-shifting rf power amplifiers

Variable radio frequency attenuator

Variable reactance circuit

Variable resistance attenuator

Variable resistor circuit, a variable attenuator circuit and...

Vertical aperture correction circuit

Very high frequency (vhf) sharp tuned elliptic filter and...

Very low frequency passband filter circuit

Vibrator

Vibrator structure and method and apparatus for adjusting...

Visual receiver limiter circuit

Vlsi architecture for the implementation of real-time order...

Voltage controlled diode attenuator

Voltage controlled subcarrier phase shifter

Voltage controlled variable power divider

Voltage variable bandpass filter

Voltage-controlled tunable distributed rc filter