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Oscillator Circuits

Morse Code Practice Oscillator Circuits

Last Updated on September 21, 2023 by Swagatam 6 Comments

morse code oscillator circuit using IC 4093

In this article we will explore 3 different Morse code practice oscillator circuits, for generating exact replication of Morse code signals in the form of dots and dashes. Contributed By: Anil Patil What is Morse Code Morse code is a legacy method of message encoding that uses rhythm and impulses to transmit telegraphic communication. Morse […]

Filed Under: Oscillator Circuits

DC Lamp Dimmer Circuit using IC 555

Last Updated on September 16, 2022 by Swagatam 20 Comments

DC lamp dimmer

In this post I have explained how to use the control pin#5 of the IC 555 to build a simple PWM controlled DC light dimmer circuit. The proposed DC lamp dimmer can be used for controlling the light intensity of any DC lamp having an operating voltage anywhere between 6 V and 12 V. The […]

Filed Under: Oscillator Circuits

Electronic Cricket Sound Generator Circuit

Last Updated on September 22, 2023 by Swagatam 6 Comments

cricket sound simulator

In this post I have explained how to build a simple cricket chirping sound generator circuit using a single IC 4093 and a few other passive components. An electronic cricket sound generator is a device which generates a sound exactly similar to a real cricket insect. This is done using a set of oscillators configured […]

Filed Under: Oscillator Circuits

Transistor Multivibrator Circuits [Astable, Bistable, Monostable]

Last Updated on August 28, 2022 by Swagatam 1 Comment

1

A transistor or BJT multivibrator is a two-stage switching circuit that is configured in a cross-coupled manner. This allows each of the active BJT stages to be regeneratively cross-coupled with the other BJT stage, so that one switches ON when the other switches OFF, and vice versa. This cross-coupling may be set up to switch either a […]

Filed Under: Oscillator Circuits

CMOS Astable, Bistable, Monostable Circuits Explained

Last Updated on June 14, 2022 by Swagatam 17 Comments

4011 pinout truth table compressed

In this article I have explained how to use the low-cost CD4001 and CD4011 quad 2-input gate CMOS integrated circuits in bistable, astable, and monostable multivibrator applications through forty different manners. We also learn how to enhance and modify these configurations to produce highly improved outputs from these multivibrators. When CMOS logic gates are configured […]

Filed Under: Oscillator Circuits

IC 4047 Astable, Monostable Circuits

Last Updated on March 7, 2024 by Swagatam 5 Comments

4047 complement gating astable circuit compressed

In an IC 4047 astable oscillator circuit, the output of the IC continuously generates a switching ON/OFF signal. Since the output is never in a stable state and constantly switches between and low and high, it is called an astable multivibrator. The astable ON/OFF switching frequency is adjustable and can be varied by changing the […]

Filed Under: Oscillator Circuits

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