R.F. modulator for use in T.V. games

r.f. Phase modulator

R.F. switched amplifier and A.M. modulator

Radio frequency oscillator-modulator circuit

Radio frequency pulse width amplitude modulation system

Radio receiver monitoring and testing apparatus

Receiver for the reception of signals transmitted by delta modul

Reflecting type light modulator

Reflection type phase modulator having reduced temperature sensi

Regulated suppressed carrier modulation system

Remanent subcarrier component suppressing device for balanced mo

Resonant linear frequency modulator

RF amplitude modulator/mixer

RF oscillator and modulator having regulated low harmonic output

RF Power amplifier with a modulating facility