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Electromagnetic switching device
A reed relay is a type of relay that uses an electromagnet to control one or more reed switches. The contacts are of magnetic material and the electromagnet
Reed_relay
Electrically operated switch
alternatives, they are now comparatively uncommon. A mercury-wetted reed relay is a form of reed relay that employs a mercury switch, in which the contacts are wetted
Relay
Electrical switch operated by an applied magnetic field
at Bell Telephone Laboratories in 1936 by Walter B. Ellwood into the reed relay. In its simplest and most common form, it consists of a pair of ferromagnetic
Reed_switch
Type of electronic contact
example, a reed relay matrix switch is normally switched with all contacts dry. After the contacts are all connected, a wire spring relay is energized
Dry_contact
Relay using mercury metal
relay is used instead. This combines the speed of a low-mass relay, together with the fast wetting of mercury contacts. A relay, usually a reed relay
Mercury_relay
Topics referred to by the same term
decoding Reed switch, an electrical switch operated by an applied magnetic field Reed relay, one or more reed switches controlled by an electromagnet Reed valve
Reed
First successful type of transistor, developed in 1947
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Point-contact_transistor
Family of British telephone exchanges
controlled reed relays, and this looked promising. One of Ericsson's marketing points for crossbar was that it used precious-metal contacts, but reed relays would
TXE
core, making them magnetically latching relays, similar to the ferreed and remreed types of reed relay. Reed relays are smaller and cheaper, thus better
Wire_spring_relay
Telephone signal
using technology such as crossbar or reed relay, the register was often a system of analog electronics or even relay logic. The terms flash and hook flash
Hook_flash
Device to trip a circuit breaker when a fault is detected
reduced to reset the relay. A variant application of the attraction principle is the plunger-type or solenoid operator. A reed relay is another example
Protective_relay
Electrical safety device that provides overcurrent protection
switch or relay unit to be fixed to the fuse body. When the fuse element blows, the indicating pin extends to activate the micro switch or relay, which,
Fuse_(electrical)
Defunct telecommunications node in the United States; part of the Bell System
May 1965. The switching fabric was composed of a reed relay matrix controlled by wire spring relays which in turn were controlled by a central processing
Number One Electronic Switching System
Number_One_Electronic_Switching_System
High-rating electrical circuit switch
container as the switching element. A mercury-wetted relay is a form of relay, usually a reed relay, in which the contacts are wetted with mercury. These
Contactor
Telephone switch that interconnects telephone circuits
switching systems in the 1960s were not entirely digital in nature, but used reed relay-operated metallic paths or crossbar switches operated by stored program
Electronic_switching_system
Electronic component
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Resettable_fuse
Semiconductor light source
Press. doi:10.1017/cbo9781107278929. ISBN 978-1-107-04942-0. Sampath, A. V.; Reed, M. L.; Moe, C.; Garrett, G. A.; Readinger, E. D.; Sarney, W. L.; Shen, H
Light-emitting_diode
Electrical connector designed to work at radio frequencies
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
RF_connector
Micro-electronic component
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
System_on_a_chip
Pictogram used to represent various electrical and electronic devices or functions
style Rotary switch, 1P4T, make-before-break, shorting style Reed switch, normally open Relays symbols are a combination of an inductor symbol and switch
Electronic_symbol
Array of logic gates that are reprogrammable
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Field-programmable_gate_array
Discrete device in an electronic system
force due to rate of rotation Relay or contactor – Electro-mechanically operated switch (see also solid state relay above) Reed switch – Magnetically activated
Electronic_component
Solid-state electrically operated switch also used as an amplifier
law Optical transistor Magneto-electric spin-orbit Nanoelectromechanical relay Semiconductor device modeling Transistor count Transistor model Transresistance
Transistor
Temperature control system
thermostats use either a relay or a semiconductor device such as triac to act as a switch to control the HVAC unit. Units with relays will operate millivolt
Thermostat
Devices that measure magnetic field strength using the Hall effect
by mechanical failure (unlike potentiometers, electromechanical reed switches, relays, or other mechanical switches and sensors). However, Hall sensors
Hall_effect_sensor
Type of resistor whose resistance varies with temperature
rate-of-climb instrument, the electronic variometer, or serve as a timer for a relay as was formerly done in telephone exchanges. The electrical power input
Thermistor
Electronic circuit formed on a small, flat piece of semiconductor material
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Integrated_circuit
Electrical component that can break an electrical circuit
switch, rotary switch, mercury switch, push-button switch, reversing switch, relay, and circuit breaker. A common use is control of lighting, where multiple
Switch
Type of magnetometer
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
SQUID
Connector used to connect to mains power
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
AC_power_plugs_and_sockets
Nonlinear two-terminal fundamental circuit element
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Memristor
Central computer component that executes instructions
computers such as EDVAC tended to average eight hours between failures, whereas relay computers—such as the slower but earlier Harvard Mark I—failed very rarely
Central_processing_unit
Passive electronic component providing electrical resistance
Radio Relay League (ARRL) (2021). "Fundamental Theory—Circuits and Components". ARRL Handbook for Radio Communications (98 ed.). American Radio Relay League
Resistor
Two-terminal electronic component
example, diodes are used in (stepper motor and H-bridge) motor controller and relay circuits to de-energize coils rapidly without the damaging voltage spikes
Diode
Electronic circuit element
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Memistor
Type of resistor, usually with three terminals
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Potentiometer
Type of resistive heater
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Self-regulating_heater
Interfaces was established in 1988 as a subsidiary of Pickering Electronics, a reed relay manufacturer founded in 1968 in Clacton-on-Sea, England. The new company
Pickering_Interfaces
American doll brand
containing a hidden magnet, which could be identified with the aid a small reed relay in the built into the head of the toy above the mouth, to signify when
Cabbage_Patch_Kids
Electronic component
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Transient-voltage-suppression diode
Transient-voltage-suppression_diode
Integrated circuit customized for a specific task
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Application-specific integrated circuit
Application-specific_integrated_circuit
The PRX205 (PRX/A) is a processor controlled reed relay telephone exchange developed by Philips Telecommunicatie Industrie BV (PTI) in Hilversum during
PRX_(telephony)
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
List_of_RF_connector_types
Type of solid state switch
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Insulated-gate bipolar transistor
Insulated-gate_bipolar_transistor
DC-to-DC power converter with an output voltage greater than its input voltage
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Boost_converter
System designed to maintain a constant voltage
or the varying load on the vehicle's electrical system as possible. The relay(s) modulate the width of a current pulse to control the average field current
Voltage_regulator
itself. The OR then receives the digits (rotary or tone), stores them in reed relay packs, and used the pretranslator to determine how many digits to receive
Number Five Crossbar Switching System
Number_Five_Crossbar_Switching_System
Diode that allows current to flow in the reverse direction at a specific voltage
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Zener_diode
Power amplifier
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Gate_driver
Passive two-terminal electrical component that stores energy in its magnetic field
this formula will be inaccurate. ARRL Handbook, 66th Ed. American Radio Relay League (1989). "Helical coil calculator". Kaizer Power Electronics. 2014-07-09
Inductor
DC-DC voltage step-down power converter
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Buck_converter
Early type of semiconductor rectifier
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Metal_rectifier
Device for producing coherent EM waves in the sub-visible spectrum
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Maser
Four-layer solid-state current-controlling device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Silicon_controlled_rectifier
Semiconductor diode
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Schottky_diode
Telecommunication system for establishing telephone calls
stored program control to the fully digital systems. Early systems used reed relay-switched metallic paths under digital control. Equipment testing, phone
Telephone_exchange
Electronic circuits that utilize digital signals
out by electrical switching circuits. Eventually, vacuum tubes replaced relays for logic operations. Lee De Forest's modification of the Fleming valve
Digital_electronics
Electrical isolation mechanism
operated at AC voltages exceeding 200 V and used as low-power AC or DC relays, e.g., to control electroluminescent indicators. In the simplest output-limiting
Resistive_opto-isolator
Converts light into current
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Photodiode
Electronic numeric display device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Nixie_tube
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Lr-diode
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
ITFET
Theoretical transistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Nanoscale vacuum-channel transistor
Nanoscale_vacuum-channel_transistor
Transistor that uses both electrons and holes as charge carriers
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Bipolar_junction_transistor
Electrical device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Single-ended primary-inductor converter
Single-ended_primary-inductor_converter
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Oscillistor
Multi-transistor electronics configuration
applications could include those involving computer control of motors or relays, where the current is amplified from a safe low level of the computer output
Darlington_transistor
Electrostatic discharge (ESD) protection device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
GgNMOS
Type of transistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Organic electrochemical transistor
Organic_electrochemical_transistor
AMD computing architecture
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
AI_engine
Practical physics application
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Light-emitting_diode_physics
Electrical or optical connectors for carrying audio and video signals
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Audio and video interfaces and connectors
Audio_and_video_interfaces_and_connectors
Bipolar junction transistor operated in the avalanche breakdown region
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Avalanche_transistor
Device for generating microwaves
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Cavity_magnetron
Collection of electronic switches arranged in a matrix
countries, and then was inhibited by the parallel development of TXE reed relay and electronic exchange systems, so they never achieved a large number
Crossbar_switch
Electronic device/component that increases the strength of a signal
strengthen a signal was the relay used in telegraph systems, the amplifying vacuum tube was first called an electron relay. The terms amplifier and amplification
Amplifier
Extremely sensitive solid-state photodetector
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Silicon_photomultiplier
Electronic oscillator circuit
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Crystal_oscillator
High-frequency pentode tube
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
EF50
Potential transistor-like device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Spin_transistor
Technology for constructing integrated circuits
Transmission gates may be used as analog multiplexers instead of signal relays. CMOS technology is also widely used for RF circuits all the way to microwave
CMOS
Light emitting diode with phototransistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Photoreflector
Type of display device
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Quantum_dot_display
Type of field-effect transistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
MOSFET
Solid-state photodetector
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Single-photon_avalanche_diode
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Pentode_transistor
Form of transistor that emits light
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Light-emitting_transistor
Type of field-effect transistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
MESFET
High frequency semiconductor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
BARITT_diode
Type of transistor
there would be with a bipolar junction transistor or with non-latching relays in some states. This allows extremely low-power switching, which in turn
Field-effect_transistor
Magnetic effect in insulators between ferromagnets
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Tunnel_magnetoresistance
Type of microwave generator
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Vircator
Electronic component that exploits the electronic properties of semiconductor materials
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Semiconductor_device
Electrical device that converts AC to DC
supply the locomotive's DC traction motors. These consisted of a resonant reed, vibrated by an alternating magnetic field created by an AC electromagnet
Rectifier
Type of solid-state switch
power transmission. Thyristors may be used in power-switching circuits, relay-replacement circuits, inverter circuits, oscillator circuits, level-detector
Thyristor
Electromechanical device
the plug. Boost converter Chopper Mechanical rectifier Multivibrator Reed relay Switched-mode power supply Bedford, B. D.; Hoft, R. G. (1964). Principles
Vibrator_(electronic)
Light dependent resistor
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Photoresistor
Type of transistor developed by Philco in 1953
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Surface-barrier_transistor
Method for producing electronic circuits
Capacitor types Ceramic resonator Crystal oscillator Inductor Relay reed relay mercury relay Other devices Hall effect sensor SQUID Spin valve Magnetic tunnel
Surface-mount_technology
Type of high-power semiconductor diode
Shinoda: A 0.5-W CW IMPATT diode amplifier for high-capacity 11-GHz FM radio-relay equipment. 14–20 (Feb 1973). IEEE Journal Volume: 8. Issue: 1. ISSN 0018-9200
IMPATT_diode
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