Transistor amplifier stage with selectively adjustabale gain...
Transistorized control and amplifier circuitry for a...
Transmitter and receiver
Transmitter architectures for communications systems
Transmitter with intelligent pre-conditioning of amplifier...
Trimming condenser for crystal driven oscillators with...
Tuning and volume indicator
Two loop automatic level control for power amplifier
Unmatched field effect transistors providing matched...
Unnatural reverberation
User adjustable volume control that accommodates hearing
Variable attenuating circuit
Variable capacitor network
Variable coupling if amplifier
Variable emitter degeneration gain-controlled amplifier
Variable emphasis circuit
Variable gain amplifier
Variable gain amplifier
Variable gain amplifier automatic gain control method and...
Variable gain amplifying device