Transistor amplifiers Electronic apparatus and appliances 25 Electronic circuits 25 Solid state electronics 25 Amplifiers, Radio frequency 10 Microwave amplifiers 8 Power transistors 5 Transistor radio transmitters 5 Continuous wave radar 2 Electron mobility 2 Global system for mobile communications 2 Modulation (Electronics) 2 Power amplifiers 2 Bipolar transistors 1 Metal oxide semiconductors, Complementary 1 Transistor circuits 1