LED indicator for setting timing on igniter fired Engines

Using a red LED and a 120 ohm resistor as a visual indicator of spark timing on an igniter fired hit miss Engine

[@mikemiles3068]

Enjoying the videos!

[@stationaryenginesworldwide]

Glad to hear it! Thanks Mike

[@Tadfafty]

Great advice. I am surprised it did't make the LED become on fire.

[@stationaryenginesworldwide]

The magneto is low tension spark and the resistor limits current to the led .. I think I measured the voltage from mag to be around 8 volts AC ..that’s why it’s called a low tension circuit

[@macmistyfinley8661]

What kind of LED did you use?

[@stationaryenginesworldwide]

It’s a red Led which has a 2 volt forward drop 20 ma around 5 mm in diameter..I would think that any LED would work in this application as the voltage produced by the mag is higher…also in series is the 120 ohm resistor I would say you could go as high as 200 ohm but if you want a good visible light stay under 200 ohm