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A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received...

In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and...

whisker. The foxhole radio, like a mineral crystal radio receiver, had no power source and ran off the power received from the radio station. They were...

A crystal detector is an obsolete electronic component used in some early 20th century radio receivers that consists of a piece of crystalline mineral...

Radio receiver design includes the electronic design of different components of a radio receiver which processes the radio frequency signal from an antenna...

tunable, portable crystal radio receiver used by the U. S. Army during World War I for fire control in conjunction with airplanes. French radio equipment was...

connected to a radio receiver, this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation...

Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience...

A tuned radio frequency receiver (or TRF receiver) is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages...

demodulator (diode D1 in the circuit), it becomes the simplest radio receiver, often called a crystal set. Older models would realize manual tuning by means of...

product. Batteryless radios were not introduced into the United States until May 1926 and then into Europe in 1927. Crystal radio receivers are a very simple...

Lee de Forest. The most common type of receiver before vacuum tubes was the crystal set, although some early radios used some type of amplification through...

A superheterodyne receiver, often shortened to superhet, is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed...

and radio waves. Receiver (information sink) that receives and converts the signal back into required information. In radio communications, a radio receiver...

with other users with similar radios, in contrast to a broadcast receiver, which only receives transmissions. Two-way radios usually use a half-duplex communication...

stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is a quartz crystal, so oscillator circuits...

tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio",...

oscillator that may range from a quartz crystal in a low-end navigation receiver, through oven-controlled crystal oscillators (OCXO) in specialized units...

incoming radio signal. It is primarily used in radio receivers to keep the receiver tuned to the frequency of the desired station. In radio communication...

was the crystal detector, which was used in the crystal set radio receiver. A later version using a crystal diode is still used in crystal radio sets today...