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An electron gun (also called electron emitter) is an electrical component in some vacuum tubes that produces a narrow, collimated electron beam that has a precise kinetic energy. The largest use is in cathode-ray tubes (CRTs), used in older television sets , computer displays and oscilloscopes , before the advent of flat-panel displays .
EEMUA 191 Alarm Systems – A Guide to Design, Management and Procurement (1999) ISBN 0-85931-076-0; ASM Consortium (2009) – Effective Alarm Management Practices ISBN 978-1-4421-8425-1; ANSI/ISA–18.2–2009 – Management of Energy Systems for the Process Industries; IEC 62682 Management of Energy systems for the process industries
User's guide for a Dulcitone keyboard. A user guide, also commonly known as a user manual, is intended to assist users in using a particular product, service or application. It is usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images.
Mobile home parks often submeter their tenants. Utility sub-metering is a system that allows a landlord, property management firm, condominium association, homeowners association, or other multi-tenant property to bill tenants for individual measured utility usage.
An ETO is turned ON by applying positive voltages to gates, gate 1, and gate 2. When a positive voltage is applied to gate 2, it turns on the MOSFET that is connected in series with the cathode terminal of the PNPN thyristor structure. The positive voltage applied to gate 1 turns off the MOSFET connected to the gate terminal of the thyristor.
AE2 may refer to: HMAS AE2, E-class submarine of the Royal Australian Navy; Aero Ae 02, a design of Czechoslovakian plane; Anion Exchanger 2, transport protein; Ape Escape 2; A size designation for Constantinian bronze coins; Applied Energistics 2, a popular mod for the video game Minecraft; Aminoestradiol, a synthetic estrogen
The output transistor carries a low current, making r π large, and increase in R 2 tends to reduce this current further, causing a correlated increase in r π. Therefore, a goal of R 2 ≫ r π can be unrealistic, and further discussion is provided below. The resistance R 1 ∥r E usually is small because the emitter resistance r E usually is ...
The narrowing of the collector does not have a significant effect as the collector is much longer than the base. The emitter–base junction is unchanged because the emitter–base voltage is the same. Base-narrowing has two consequences that affect the current: There is a lesser chance for recombination within the "smaller" base region.