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Archive for the ‘Oscillator’ Category


More circuits about oscillator, pulse, frequency , and others.


 Current-controlled Sawtooth Generator Circuit

Friday, December 19th, 2014

This Sawtooth wave generator circuit include of the frequency oscillator is controlled by current. Which can generate the sweep frequency in wide range. Suitable to be applied in the field of music equipment and a narrow pulse output. Also we are able to be a random circuit, and Hold. This circuit include of current variable […]


 Low-volts Crystal Frequency Generator Circuit

Thursday, December 18th, 2014

We can easily use FET and Crystal to generate the frequency and In particular, this circuit use very low voltage. It can operate at a supply voltage to 1.5 volts only and at crystal frequency 100 KHz to 10 MHz. The crystal is connected to between the drain and gate of FET-T1 BF256. It runs […]


 Simple Crystal oscillator Circuit

Wednesday, December 17th, 2014

This is simple crystal oscillators that provided square wave of 1MHz to 10MHz, Use an inverter gate IC and control frequencies with crystal. A oscillator or a frequency generator provide waveform out in various forms. For example : sine wave, Triangular waveform, Or square wave. The Frequency generator to control or out for a base […]


 1KHz Signal injector for electronic technicians

Tuesday, December 9th, 2014

A signal injector is important tools for the electronics technicians it small and cheap. This project is better the simple circuit because it has 1KHz and many frequency harmonic. The normal signal injector has a square wave output about 1KHz. Which the square wave has lot of harmonic and up to many MHz so can […]


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