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Latest posts
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Transistor One-Shot: How a Monostable Multivibrator Works
Learn how a transistor one-shot circuit (monostable multivibrator) works, including its operating principle and example applications. Read more The post Transistor One-Shot: How a Monostable Multivibrator Works appeared first on ElecCircuit.com .
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Transistor Oscillator & Signal Generator Circuits (Diagram Directory)
Here is the quick-access directory for transistor-based oscillator and signal generator circuits. My son complained that it’s hard to find content on our website because there’s just too much going on. I’m sure other dads my age would find it just as dizzying as I do! Let’s try…
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Building a Simple Adjustable Analog Thermometer Circuit
Let's build a simple analog thermometer circuit using the basic idea of an expanded-scale voltmeter and a recycled thermistor. Read more The post Building a Simple Adjustable Analog Thermometer Circuit appeared first on ElecCircuit.com .
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12V Automatic Fan Controller Circuit with Thermistor and LED indicator
This is a simple automatic fan control circuit that turns on the DC fan when the temperature rises above a certain threshold. It runs on 12V and uses an NTC thermistor as a temperature sensor. The circuit itself is small, using only two transistors, and it also has an indicator…
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12V to 9V Power Supply Experiments for a Digital Oscilloscope
We needed a clean and stable 9V power supply for one of our digital oscilloscopes. Since the oscilloscope is sensitive to electrical noise, simply connecting it to a basic power source may not always produce the best results. In an effort to find a suitable solution, we tested…
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Simple Expanded-Scale Voltmeter — Basic Circuit and 9-13V Range
Learn how an expanded-scale voltmeter circuit works and build a simple circuit for measuring a 9-13V range with an analog meter. Read more The post Simple Expanded-Scale Voltmeter — Basic Circuit and 9-13V Range appeared first on ElecCircuit.com .