If you have ever walked into a room or steps and watched the lights turn ON…
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RC Phase Shift Oscillator using op amp 741
While working on signal testing and basic R&D setups, I often need a simple sine wave…
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Frequency to Period Converter
As we know frequency and period calculation can be done easily using simple formula T=1/f or…
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Simple Signal Amplifier with Gain Control Circuit
While working on signal testing and R&D activities on my work bench, I often felt need…
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Simple online LC Tank circuit Resonance Calculator
While working with RF circuits, oscillators, or even simple band pass filters, one basic calculation always…
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Simple EMF Detector and Electroscope Circuit
When ever I work with Transformers, Inductive circuit, I encounter a common problem, IS IT WORKING…
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Class A BJT Amplifier Biasing Methods
When I first started experimenting with transistor amplifiers, the most confusing part was not the gain…
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TOP 5 World’s Simplest Audio Amplifier Circuit
We use bulky Audio Amplifiers to drive speaker, In case you need to drive single speaker…
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Active Audio Equalizer Circuit
Equalizer circuit in a Audio System helps us to filter & adjust Bass, Mid, Treble frequencies.…
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Automatic Lithium Battery Charger Circuit
We mostly use Lithium Batteries for our electronic projects and applications. But these batteries are sensitive…
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