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
0a79 ( germanium diode )in glass construction form is used in AM detector circuits.
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.
It's a high voltage diode, typically used in microwave ovens.
It is used for the radio control of model aircraft,boats, cars.
zener diode is a revers bias diode which used for voltage regulation.
0a79 ( germanium diode )in glass construction form is used in AM detector circuits.
By R.R. Gulati
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.
yes, diode can be used as rectifier diode to convert ac to dc
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.
A diode is used primarily as a Rectifier
yes ofcourse diode can be used as rectifier but it's an uncontrolled rectification.
varactor diode is a correct answer
zener diode
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.
It's a high voltage diode, typically used in microwave ovens.
Diode in simple terms is a "One Way" Device, i,e it allows current to flow thru in one direction only.Diodes are the most indispensable part in the electronic/electric World.