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The Spooky Tesla Spirit Radio is more than just a crystal radio circuit in a jam-jar. It's a sound maker that plugs in to a computer, and makes awesome spooky sounds by responding to electromagnetic fields or light sources in real time.

Spooky Tesla Spirit Radio

The Spooky Tesla Spirit Radio is more than just a crystal radio circuit in a jam-jar. It's a sound maker that plugs in to a computer, and makes awesome spooky sounds by responding to electromagnetic fields or light sources in real time.

The most frequently used device in electronic workshops and laboratories is a universal power supply that provides a variable, fluctuation-free output. Here we present a variable power supply with digital control that is simple and easy to construct. The circuit is built around an adjustable 3-terminal positive-voltage regulator IC LM317, CMOS decade counter IC CD4017, …

The most frequently used device in electronic workshops and laboratories is a universal power supply that provides a variable, fluctuation-free output. Here we present a variable power supply with digital control that is simple and easy to construct. The circuit is built around an adjustable 3-terminal positive-voltage regulator IC LM317, CMOS decade counter IC CD4017, …

This is a simple battery charge level indicator circuit and is very useful to calibrate inverter status, to measure car battery level, etc.

Battery Level Indicator Circuit using LM3914

This is a simple battery charge level indicator circuit and is very useful to calibrate inverter status, to measure car battery level, etc.

This article describes you how to design a variable power supply circuit which will provide 0 to 28V at 6 to 8 amps. It is designed using LM317 and 2N3055.

0-28V, 6-8A Power Supply Circuit using LM317 and 2N3055

This article describes you how to design a variable power supply circuit which will provide 0 to 28V at 6 to 8 amps. It is designed using LM317 and 2N3055.

PLC Simulator free training demo download - Allen Bradley RSlogix Simulator brand (Free version only works on 32 bit, paid version works on all including 64 bit)

PLC Simulator free training demo download - Allen Bradley RSlogix Simulator brand (Free version only works on 32 bit, paid version works on all including 64 bit)

This video covers the basics of linear voltage regulators - what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. Don't forget to subscribe! This video builds on material covered in my tutorial on building unregulated power supplies: h...

This video covers the basics of linear voltage regulators - what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. Don't forget to subscribe! This video builds on material covered in my tutorial on building unregulated power supplies: h...

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