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This is very old germanium diode and nomenclature comes before a standard had been established for semiconductors. They modeled 0A after the vaccum tubes where 0 - zero means 0Volts filament voltage and A meant single diode.
Latter , semiconductor nomenclature come where the first number was telling a number of PN junctions followed by N (this is for US), Japanese and Europeans had different naming standards
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What are the applications of 0A79 diode?
0a79 ( germanium diode )in glass construction form is used in AM detector circuits.
What is the use of crystal detector in electronics?
A crystal detector is a diode, often used in non-powered radio receivers. It conducts at a much lower voltage than a typical silicon diode, making it easier to generate the signal amplitude required from the tuning circuit.
What type of diode is a HVR-1X4 diode?
It's a high voltage diode, typically used in microwave ovens.
Why frequency modulation is superior to amplitude modulation?
FM provides noise immunity, whereas AM is easily affected by noise. With FM, the amplitude of the sound is converted into a shift in frequency. So the volume is limited by the bandwidth, but the frequency of the sound can vary as much as it likes, giving a higher fidelity sound. Spikes induced on the signal usually affect the amplitude of the signal. The amplitude of an FM signal is not used in the demodulation process and is therefore immune to spikes in the signal. AM was first used in radio because it is very easy to achieve using basic components. A single rectifier only, is needed to recover the audio. FM is quite a complicated process and could only be achieved once electronics had progressed.
What is pulse position modulation and demodulation?
It is used for the radio control of model aircraft,boats, cars.
What are the applications of 0A79 diode?
0a79 ( germanium diode )in glass construction form is used in AM detector circuits.
Why diode 0A79 is used?
By R.R. Gulati
What is the difference between coherent demodulation and non coherent demodulation?
In case of coherent demodulation carrier used for demodulation purpose is in phase and frequency synchronism with carrier used for modulation purpose. For non-coherent demodulation it is not in synchronism.
Can a diode be used as rectifier diode?
yes, diode can be used as rectifier diode to convert ac to dc
What is the use of crystal detector in electronics?
A crystal detector is a diode, often used in non-powered radio receivers. It conducts at a much lower voltage than a typical silicon diode, making it easier to generate the signal amplitude required from the tuning circuit.
What is the function of diode what is the function of diode?
A diode is used primarily as a Rectifier
What is diode and define some of its applications?
a diode is any electronic device that conducts current significantly better in one direction than the other. it can be a vacuum tube diode, a gas filled tube diode, a point contact semiconductor diode, a junction semiconductor diode, any of several metal oxide diodes, etc.typical applications are:AC power rectifiersAmplitude modulated radio signal demodulators (detectors)Gas filled tube diodes used to be used in certain types of digital counters and computer registersDigital logic gatesSign detection circuits in analog computersVoltage clamps and clippersFrequency modulated radio amplitude limiters to remove static and interferenceetc.
Can diode be used as rectifier?
yes ofcourse diode can be used as rectifier but it's an uncontrolled rectification.
What type of diode is used as a variable capacitor?
varactor diode is a correct answer
Is it pn junction diode used as voltage regulator?
zener diode
What type of diode is a HVR-1X4 diode?
It's a high voltage diode, typically used in microwave ovens.
What is the difference between p n junction and zener diode?
The difference between the pn-junction diode and the zener diode is that the pn-junction diode is used for rectification while the zener diode is used for rectification and stabilization. Also, the zener diode can function in the breakdown region while the pn-juntion diode can not function in that regime.
