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US4540957A
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Amplitude modulator forms two phase-shifted pulse trains and combines them
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EP0048786A2
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Variable phase square wave voltage generator
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US4319204A
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Phase modulated square wave generator
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US4311977A
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Output transformer
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EP0011464A2
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Circuit and method for generating modulated oscillations and a modulated oscillatory signal generated by the method
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US4039982A
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Coaxial cavity radio frequency tuning circuit having a toroidal-shaped electrode to effect tuning
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US4017866A
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Log sequential antennas
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Pulse width modulating circuit
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US3814838A
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Insulator assembly having load distribution support
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US3634610A
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Quadrapost fail-safe insulator
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US3617887A
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Voltage-to-current converter for driving a meter movement
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US3495264A
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Loop antenna comprising plural helical coils on closed magnetic core
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US3392337A
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Wide band frequency discriminator employing a constant delay
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GB1048793A
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Automatic positioning device
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Directional antenna signal combining arrangement and phase shifters therefor
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US3314024A
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High efficiency amplifier and push-pull modulator
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US3337823A
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Automatic tuning device having means for comparing the currents in the inductive andcapacitive arms of a tank circuit
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US3262020A
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Heat transfer device
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Multiple modulating anode beam type electron tube and modulating circuit
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GB979369A
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Improvements in or relating to amplitude modulated transmitters
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