Documentation: Joule Thief Flashlight Kit
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      This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

      Instructions:

      1. Choose a model to use with your kit:
        • Browse the 3D models above
        • Use associated link to download the ZIP file
        • ZIP files contain STL ready to print and STP files for easy customization
      2. Print your chosen model:
        • Print the STL models or customize the included STP files (recommend Fusion 360)
      3. Assemble your Electronics Kit:
        • Solder components to the PCB (see image below for placement)
          • Note:  Coil has two wires, one must use the pair of holes on each side of the PCB (see graphic on PCB); either coil can be on either side.
          • LED polarity is important and must be installed with flat side (negative) per the image on PCB. It is sometimes difficult to make out the flat side so note that the shorter lead indicates the negative side as well.
          • Transistor polarity must be correct with flat side oriented as shown.
          • Tip:  Dry fit the coil and transistor in printed case before soldering to adjust height for print.
      4. Finally, assemble the electronics and printed case.  Try different cases or design your own!
        • If you design your own, be sure to share it with the community in our Thingiverse group!

      Designs coming soon: TBD, email us your ideas!

      Parts List:

      QTY

      PART NAME

      IMAGE

      1

      PCB (Joule Thief Flashlight V1)

      2

      LED (5 mm Cool White)

      1

      Resistor (1K 1/4 Watt)

      1

      Transistor (NPN 2N2222)

      1

      Coil Toroid Choke

      1

      Switch

      1

      Button

      2

      Bolt (M3 x 8)

      2

      Nut Insert (M3 x 4)

      1

      AA Battery Holder

      1

      Hex Key (2.5 mm)