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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

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Simple one op amp, 4-20mA current-loop transmitter circuit is receiver powered
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DIY Universal AC-DC Power Supply Circuit | 12V 3A (36W)
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DIY Temperature Controlled 12V PWM FAN Controller with an AC to DC Flyback Power Supply
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85V-260VAC to 5VDC/12VDC 24W Flyback Switching Power Supply
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OLED display low frequency basic oscilloscope.
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OLED display 16MHz frequency counter
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Plays .wav files from FAT32 SD card
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Waveform Generator 2025-01-11
AD9833 sine, triangle and squarwave 1Hz to 10MHz generator.
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