Indicator of soft gamma and other rays given off by radioactive materials which are capable of exciting luminescent materials to emit photons in the ultraviolet range
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An improved method and means for making a glass-to-metal seal
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Improvements in and relating to electron tubes
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Improvements in and relating to multiple amplifier assemblies
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Teleprinting device
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Impulse metering device
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Stabilization of resonant circuits
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A device for tuning, and measuring the band width of, band pass filters or separate oscillatory circuits
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A method of and a device for a quick measurement of inductance, capacity and resonance frequency of tuned circuits with a small quality factor
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A device for the measurement and quick control of the quality factor, or damping factor, of inductance coils, capacitors and resonant circuits
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Phase modulated signaling system and method
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Method of and device for measuring and controlling the quality factor and damping factor of electric circuits and components thereof
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Method of and device for transforming amplitude modulation into phase modulation
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Balanced feedback for symmetric cathode followers
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A wattmeter for electric high frequency currents
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Wattmeter for electric highfrequency currents
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Method for increasing the deviation of frequency modulated oscillations
