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How to Make Pierce Oscillator, Hartley Oscillator Circuits

Last Updated on September 22, 2026 by Swagatam 4 Comments

pierce oscillator compressed

In this post I have explained how to build simple oscillator circuits like the pierce oscillator and hartley oscillator using a single CMOS gate. Both the oscillators are types of oscillators that utilize minimum number of components yet are able to generate very stable and reliable frequency outputs. You might also want to learn How […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Hartley, Oscillator, Pierce

2 Simple Milliohm Meter Circuits [Measure Low Resistances below 1 Ohm with these Circuits]

Last Updated on June 8, 2026 by Swagatam 5 Comments

low ohm tester circuit compressed

The low resistance measuring circuit I have explained below can be used for measuring all milliohm resistances below 1 ohm with extreme accuracy. The resistance to be measured can be as low as 0.01 ohm or 10 milliohm. The output of the circuit converts the resistance value to exactly equivalent volts, which means the output […]

Filed Under: Meters and Testers Tagged With: Circuits, Measure, Meter, Milliohm, Resistances, Simple

Boolean Algebra in Logic Circuits Made Easy

Last Updated on May 20, 2026 by Swagatam 10 Comments

inversion compressed

Boolean algebra is a assortment of basic mathematical techniques applied to signify and communicate the logical procedures that happen within a digital circuit. Difference Between Boolean Algebra and Common Algebra Boolean algebra is much like common algebra. The main distinction is that in contrast to common algebra, in which we have parameters that can be […]

Filed Under: Electronics Theory Tagged With: Algebra, Boolean, Circuits, Easy, Logic, Made

Tuned Radio Frequency (TRF) Receiver Circuits

Last Updated on May 15, 2026 by Swagatam 15 Comments

hiw to wind Li and L2 compressed

A tuned radio frequency receiver (or TRF receiver) is a form of radio receiver which is made using a number of tuned radio frequency (RF) amplifier stages accompanied by a detector (demodulator) circuit to draw out the audio signal, along with an audio frequency amplifier for amplifying the extracted audio into a loudspeaker. This kind […]

Filed Under: Audio and Amplifier Projects Tagged With: Circuits, Frequency, Radio, Receiver, TRF, Tuned

12 Basic Digital Logic Circuits Explored

Last Updated on May 20, 2026 by Swagatam Leave a Comment

Fig1a

In the following paragraphs I will try to explain the most basic foundations of digital electronic circuits: namely logic gates and logic flip-flops. Whether it is a complex and larger digital circuits, or as simple as a BCD counter, for example the 7490, or a large-scale integration (LSI) microprocessor chip, eventually all of these comprise […]

Filed Under: Electronics Theory Tagged With: Basic, Circuits, Digital, Explored, Logic

10 Simple IC 555 Monostable Circuits Explored

Last Updated on June 23, 2026 by Swagatam 28 Comments

ic 555 internal view compressed

In this post I have explained how IC 555 can be used for making 10 different types of monostable multivibrator circuits, such as one-shot type, debounce preventor, retriggerable type, touch switch monostable circuit and many more. A monotsable multivibrator circuit is a configuration in which, a short momentary pulse at the input of the circuit […]

Filed Under: Mini Projects Tagged With: 555, Circuits, Explored, Monostable, Simple

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