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The 1956 Hewlett-Packard MODEL 650A Test Oscillator Operator and Service Manual indicated Tung-Sol as a replacement parts designated manufacturer without a part referenced in the specific model. [120] On October 1, 1959, Tung-Sol provided a Price List on Electron Tubes for its commercial and government customers to purchase in bulk pricing.
Johnson & Johnson (J&J) is an American multinational pharmaceutical, biotechnology, and medical technologies corporation headquartered in New Brunswick, New Jersey, and publicly traded on the New York Stock Exchange.
A Johnson & Johnson subsidiary filed for bankruptcy for a third time on Friday as the healthcare giant seeks to advance an approximately $8 billion proposed settlement that would end tens of ...
PCB warning label on a power transformer known to contain PCBs. Polychlorinated biphenyls (PCBs) are organochlorine compounds with the formula C 12 H 10−x Cl x; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment. [2]
English physicist J. J. Thomson invented waveguides: 1894: Italian inventor Guglielmo Marconi begins developing the first radio wave based wireless telegraphy communication system [6] [7] 1895: Indian physicist Jagadish Chandra Bose conducts experiments in extremely high frequency millimetre waves using a semiconductor junction to detect radio ...
Synchronous motors fall under the category of synchronous machines that also includes synchronous generators.Generator action occurs if the field poles are "driven ahead of the resultant air-gap flux by the forward motion of the prime mover".
In 1961, Janssen Pharmaceuticals was purchased by New Jersey–based American corporation Johnson & Johnson, and became part of Johnson & Johnson Pharmaceutical Research and Development (J&J PRD), now renamed to Janssen Research and Development (JRD), which conducts research and development activities related to a wide range of human medical ...
The flyback transformer is also known as an IHVT (Integrated High Voltage Transformer) if it includes a voltage multiplier. The flyback uses a ceramic or powdered iron core to enable efficient operation at high frequencies. The flyback contains one primary and many secondary windings that provide several different voltages.