Varactor compensation in amplifier circuits

Variable amplifier for RF input stage

Variable bias control for switch mode RF amplifier

Variable characteristics amplifier circuit

Variable decision threshold apparatus

Variable emitter degeneration gain-controlled amplifier

Variable equalization system

Variable equalizer

Variable filter circuit

Variable frequency characteristic circuit for a vehicular sound

Variable frequency system having linear combination of charge pu

Variable gain amplification circuit

Variable gain amplification circuit having a circuit for control

Variable gain amplification using Taylor expansion

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier