High Voltage Igniter

Here is an easy to build high voltage igniter that can be made fairly cheaply. Ignition coils require their 12v power source to be interrupted for them to release the charge on the high voltage side. Inserting a simple 40amp car relay and wiring it to turn itself and the coil off and on again repeatedly produces a high voltage spark I use to ignite my pulse jet engines.

Below is a list of parts needed. I sourced most of it from Amazon and there are affiliate links provided to the exact parts I used here in this video.

Build Parts:
40amp 5 pin car relay https://amzn.to/3w3c2hF
12v ignition coil https://amzn.to/3w3cc8L
Condenser https://amzn.to/3CLwabR
Extra Wire (I used an old light gauge extension cord) https://amzn.to/3GKCeSW
Shrink Tube (optional) https://amzn.to/3w8XJYV
12 volt battery https://amzn.to/3XdTM0Z
Crimp on Ring Terminals https://amzn.to/3QJntoj
10-32 bolt and 2 nuts
JB Weld (Optional) https://amzn.to/3GIMhYS

Tools Required:
Wire Strippers
Soldering Iron (optional)
Solder (optional)
Soldering Paste (optional)
Wrenches
Welder or JB Weld

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