RF tuning devices, namely, automatic impedance tuning networks; power supplies, namely, electrostatic chuck power supplies; radio signal processing apparatus, namely, frequency synthesizers; directional wattmeters; radio signal processing apparatus, namely, radio frequency and direct current amplifiers; frequency converters, namely, balanced signal mixers for frequency conversion

RF tuning devices, namely, automatic impedance tuning networks; power supplies, namely, electrostatic chuck power supplies [ ; radio signal processing apparatus, namely, frequency synthesizers; directional wattmeters; radio signal processing apparatus, namely, radio frequency and direct current amplifiers; frequency converters, namely, balanced signal mixers for frequency conversion ]

RF tuning devices, namely, automatic impedance tuning networks; power supplies, namely, electrostatic chuck power supplies [ ; radio signal processing apparatus, namely, frequency synthesizers; directional wattmeters; radio signal processing apparatus, namely, radio frequency and direct current amplifiers; frequency converters, namely, balanced signal mixers for frequency conversion ]

RADIO COMMUNICATION EQUIPMENT-NAMELY, SPEECH PROCESSORS, DIRECTIONAL WATTMETERS, BALANCED MIXERS AND AMPLIFIERS