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UJT Organ circuit with schematic and working – Circuit Schematic
UJT Organ circuit with schematic and working
A UJT Organ circuit with circuit diagram is explained in detail. A 2N 4891 UJT is used for the working of the circuit.....
Triangular Wave Generator – Circuit Schematic
Triangular Wave Generator
Triangular wave generator using opamp. Circuit diagram theory and working. Integrating square wave produces a triangular wave. Practical circuit diagram of tria...
Transistor phase shift oscillator. RC phase shift network and RC phase shift oscillator using opap – Circuit Schematic
Transistor phase shift oscillator. RC phase shift network and RC phase shift oscillator using opap
Transistor RC phase shift oscillator . RC phase shift oscillator using opamp. RC phase shift network. Theory and working principle. circuit diagram.....
Square wave generator using uA 741 – Circuit Schematic
Square wave generator using uA 741
Square wave generator using uA741. Circuit diagram, theory and working principle.....
Square Wave Generator using Op-Amp – Circuit Schematic
Square Wave Generator using Op-Amp
The non-sinusoidal waveform generators are also called relaxation oscillators. The op-amp relaxation oscillator shown in figure is a square wave generator. In g...
simple function generator circuit – Circuit Schematic
simple function generator circuit
A simple function generator circuit using LM1458 is known here. LM1458 is a dual general purpose operational amplifier. The two opamps inside LM1458 has a commo...
Sawtooth Wave Generator – Circuit Schematic
Sawtooth Wave Generator
Sawtooth wave generator using NE555 and opamp uA741. NE555 is wired as square wave generator and opamp is wired as integrator.Circuit diagra, and working theory...
Simple NE555 Sawtooth Wave Generator Circuit – Circuit Schematic
Simple NE555 Sawtooth Wave Generator Circuit
A sawtooth wave generator circuit using a 555 IC is given in the article below.Frequency equation is given with the supply voltage Vcc.....
Quartz crystal tester circuit – Circuit Schematic
Quartz crystal tester circuit
This a very simple and inexpensive circuit that can be used to test quartz crystals. Here a Colpitts oscillator is wired used the transistor T1. When the crysta...
Phase Shift Oscillator – Circuit Schematic
Phase Shift Oscillator
We select the so called phase shift oscillator as a first example as it exemplifies verysimply the principles set forth in the previous blog post. The circuit i...
Oscillator operation-working-feedback circuit block diagram – Circuit Schematic
Oscillator operation-working-feedback circuit block diagram
A feedback amplifier having closed-loop gain, Af greater than unity can be obtained by the use of a positive feedback. This result also satisfies the phase cond...
Negative Resistance Oscillators-WorkingTypesCircuitsCharacteristics – Circuit Schematic
Negative Resistance Oscillators-WorkingTypesCircuitsCharacteristics
The working of Negative Resistance Oscillators,Types like Dynatron,Tunnel diode oscillator, their characteristics and circuit diagram is explained.....
Metronome generator circuit – Circuit Schematic
Metronome generator circuit
Here is a simple circuit using IC NE555 that can be used to generate metronomes. Such a circuit is very useful to those who learns music. The circuit is nothing...
Function Generators – Circuit Schematic
Function Generators
A function generator is a signal source that has the capability of producing different types of waveforms as its output signal. The most common output waveforms...
Electronic mosquito repeller – Circuit Schematic
Electronic mosquito repeller
Here is the circuit diagram of an ultrasonic mosquito repeller. The circuit is based on the theory that insects like mosquito can be repelled by using sound fre...
Dual Tone Model Train Horn/Sound Generator Circuit using 556 IC – Circuit Schematic
Dual Tone Model Train Horn/Sound Generator Circuit using 556 IC
A dual tone model train horn/sound generator/simulator circuit can be made using two NE 555 timers connected in cascade. But here circuit diagram is designed wi...
Ding-Dong sound generator – Circuit Schematic
Ding-Dong sound generator
This is the circuit diagram of a ding dong sound generator based on two NE555 timer ICs. The circuit is designed to toggle between two adjustable frequencies to...
CW Practice oscillator – Circuit Schematic
CW Practice oscillator
A circuit diagram that can be used for the generation of CW Morse code is shown here. This circuit can be very useful those who would like practice Ham Radio. T...
Crystal Oscillator – Circuit Schematic
Crystal Oscillator
In crystal oscillators, the usual electrical resonant circuit is replaced by a mechanically vi ­brating crystal. The crystal (usually quartz) has a high degree...
Colpitts oscillator using transistor. Circuit diagram and theory – Circuit Schematic
Colpitts oscillator using transistor. Circuit diagram and theory
Colpitts oscillator circuit diagram and theory. Colpitts oscillator frequency equation. Colpitts oscillator using transistor. Colpitts oscillator using opamp.....