So for the ignition system of my soon to be running jet engine I'm using those cheap Ebay "high voltage" aka taser modules to charge up a capacitor which then dumps the energy on the spark plug via a spark gap.
Upon testing it two of the 4 gauges went haywire and are now fried, initially I thought it was because the capacitor negative was on the same ground as the gauges (using the engine as ground like a car wiring) but have now realised it's EMF from the spark as the two working gauges are metal cased.
Would aluminium tape be enough to shield the parts so I don't fry them again at £20 a pop instead of creating a bigger air gap?
You can see in the below pic the far left gauge is plastic which is one that fried (other one is ti the right of the ribbon cable) and the high voltage parts are in the black box to the right.
Upon testing it two of the 4 gauges went haywire and are now fried, initially I thought it was because the capacitor negative was on the same ground as the gauges (using the engine as ground like a car wiring) but have now realised it's EMF from the spark as the two working gauges are metal cased.
Would aluminium tape be enough to shield the parts so I don't fry them again at £20 a pop instead of creating a bigger air gap?
You can see in the below pic the far left gauge is plastic which is one that fried (other one is ti the right of the ribbon cable) and the high voltage parts are in the black box to the right.