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Electronic projects

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Projects

  • Create a nightlight from old usb charger
  • Howto build a zener diode tester
  • How to build a cheap 3A regulated power supply
  • How to build a quick 0-160V high current DC power supply using a variac
  • How to make a 100X oscilloscope probe
  • Electronics:Simple circuit for lithium battery charge meter
  • Power strip controlled by computers on/off status
  • Add 3.5mm headphone jack to bluetooth headphones


Tutorials

Here are some tutorials I've written

  • select a soldering iron
  • solder
  • solder surface-mount components
  • interpret Cadence errors
  • build an oscillator circuit
  • identify computer chips or integrated circuits on circuit boards
  • identify integrated circuit(IC) chip packages
  • identify integrated circuit (chip) manufacturers by their logos
  • import FreePCB gerber (CAM) files into CircuitCam for use with a LPKF milling machine
  • and computer acronyms
  • energy acronyms
  • measure a transformers turns ratio
  • build a transformer or inductor
  • design a flyback transformer
  • read inductor color codes
  • measure a transformers turns ratio
  • identify zener diodes
  • to design a snubber for a flyback converter
  • to design a flyback transformer
  • to boost the output voltage swing of an operational amplifier
  • to identify inductor markings
  • to straiten bent CPU pins and other PGA chips
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