Monday, September 22, 2014

How to build a custom relay

Relays are awesome little devices that allow small voltages to open and close a circuit, enabling a more powerful current to flow to it's destination.

The parts we'll need are...

  • 1" x 1" proto-board
  • 1k-1.5k ohm resistor
  • red light emitting diode (LED)
  • junction boxes
  • small relay
  • RCA jack
  • solder

The tools we'll need are...

  • soldering iron

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