Ads
related to: best diodes for crystal radiosebay.com has been visited by 1M+ users in the past month
- Daily Deals
Lowest Prices on Top Items.
Save Money with eBay Deals.
- Music
Find Your Perfect Sound.
Huge Selection of Musical Gear.
- Gift Cards
eBay Gift Cards to the Rescue.
Give The Gift You Know They’ll Love
- eBay Money Back Guarantee
Worry-Free Shopping.
eBay Is Here For You!
- Daily Deals
Search results
Results from the WOW.Com Content Network
This component is now called a diode. Crystal radios are the simplest type of radio receiver [2] and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of wire, a capacitor, a crystal detector, and earphones (because a crystal set has insufficient power for a loudspeaker). [3]
Crystal radios had no amplifying components to increase the loudness of the radio signal; the sound power produced by the earphone came solely from the radio waves of the radio station being received, intercepted by the antenna. Therefore, the sensitivity of the detector was a major factor determining the sensitivity and reception range of the ...
A simple crystal radio with no tuned circuit can be used to listen to strong AM broadcast signals. An early form of envelope detector 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.
Between the circuit's input and output is a diode that performs half-wave rectification, allowing substantial current flow only when the input voltage is around a diode drop higher than the output terminal. The output is connected to a capacitor of value and resistor of value in parallel to ground. The capacitor is charged as the input voltage ...
Greenleaf Whittier Pickard (February 14, 1877 – January 8, 1956) was an American electrical engineer and inventor. He was largely responsible and most famous for the development of the crystal detector, the earliest type of diode detector, although he was not the earliest discoverer of the rectifying properties of contact between certain solid materials. [1]
Also called CLDs, constant-current diodes, diode-connected transistors, or current-regulating diodes. Crystal rectifiers or crystal diodes These are point-contact diodes. [27] The 1N21 series and others are used in mixer and detector applications in radar and microwave receivers. [24] [25] [26] The 1N34A is another example of a crystal diode. [38]
The crystal detector, the earliest type of semiconductor diode, was used as a detector in some of the earliest radio receivers, called crystal radios, to rectify the radio carrier wave and extract the modulation which produced the sound in the earphones.
The simplest crystal radio receiver, employing an antenna and a demodulating diode , is actually a rectenna, although it discards the DC component before sending the signal to the headphones. People living near strong radio transmitters would occasionally discover that with a long receiving antenna, they could get enough electric power to light ...
Ads
related to: best diodes for crystal radiosebay.com has been visited by 1M+ users in the past month