Today I am showing you how to make very powerful pen style electric arc metal engraver circuit using IC 555 and MOSFET. Actually this idea is inspired by one of my blog reader, and my friend Mr. August. He made one crude engraver using 6V transformer and tractor charging coil, but he wanted a smooth […]
Oscillator Circuits
Build this Simple Zener-Stabilized Wien Bridge Sine Wave Generator Circuit
This zener diode stabilized Wien Bridge sine wave oscillator circuit is very easy to build and test, let me explain full working in simple way. Basically here we are using TL072 opamp which needs dual supply like +15V on pin 8 and -15V on pin 4. Pin 1 is our main output pin from where […]
Understanding CMOS IC 4035 Datasheet – 4-Bit Parallel In Parallel Out Shift Register
So now we are talking about this digital IC called 4035 which is made using CMOS technology, that means it will use very low current and will give us high noise immunity. Inside this IC we have got 4 flip-flops which are arranged in such a way that they can hold and shift 4-bit data. […]
Morse Code Practice Oscillator Circuits
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 […]
DC Lamp Dimmer Circuit using IC 555
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 […]
Electronic Cricket Sound Generator Circuit
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 […]