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µTesla - One inch tesla coil

A total rip off of the filthy cheap "tesla coil" kits on ebay/aliexpress, rejangled onto a square inch PCB for the contest.

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One inch musical slayer exciter driver for a tiny tesla coil.

A slayer exciter circuit based around the IRF530 and TIP41, like most of the DIY kits on the likes of ebay and aliexpress. The PCB's for such kits are unnecessarily larger, so I figured it would be fun to squeeze it down to a square inch ;)

1 inch tesla.sch

EAGLE sch file

sch - 896.04 kB - 09/16/2018 at 19:42

See BOM
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1 inch tesla.brd

EAGLE brd file

brd - 62.41 kB - 09/16/2018 at 19:42

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  • 1 × PCB Electronic Components / Misc. Electronic Components
  • 2 × 2K resistor
  • 2 × 10K resistor
  • 2 × 3mm LEDs
  • 1 × 1uF electrolytic cap

View all 10 components

  • The video

    Chris 09/16/2018 at 20:48 0 comments
  • The build

    Chris 09/16/2018 at 19:08 0 comments

    I received the PCBs a couple of days before leaving for EMFcamp, so decided to take the bits along and build it there.

    Anyone who has been to a hacker camp before should know that this was a mistake. You never up doing the things you plan, or at least how you planned them!

    I decided that the best time to fire up EAGLE and build the PCB was after a few too many drinks, and unsurprisingly it didn't work!

    After returning home I gave it another look, and found that I had actually assembled it correctly. So the problem must have been a design flaw. After inspecting some other circuit diagrams, I found that one of the LED's was actually supposed to be used to bias the base of the BJT. A couple of quick mods to the circuit had it working! the V3 circuit should now be correct out of the box.

  • PCB's ordered

    Chris 08/18/2018 at 16:49 0 comments

    Mini tesla coil kit received ✅

    Circuit checked ✅

    PCB's ordered ✅

  • First log

    Chris 08/16/2018 at 20:57 0 comments

    Mini tesla coil kit ordered ✅

    Circuit ripped off of mini tesla coil kit ✅

    PCB designed without checking any of the components ✅

View all 4 project logs

  • 1
    Populate components

    Except transistors and coils

  • 2
    Fix transistors to heatsinks and solder to board
  • 3
    Fix 350T coil to PCB with hot glue, and solder one end to pad on board

View all 5 instructions

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