The information I got for the 2N2222 transistor was- max amps at collector= 600mA.
Max voltage 120volts
120 / 600mA = 200 ohms
V / A = R
The resistor I used was 200ohms in my curcuit for my ignition moduel.
I had trouble getting it to work beacuse I never earthed all components and also never powered the signal (base of transistor)
If I built the circuit again I would use a darlington pair. Next time Ill check that all components are powered earthed and all connected in a full curcuit.
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