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Unfortunately the reported results aren't plausible unless there's a remaining load keeping the SCR in triggered state. I see little chance to debug the design from a distance.
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I worked with flash bulbs as a school boy. If I remember right, the flash units often used a capacitor to store the ignition energy. Respectively the battery could be made much smaller. I presume you can design a capacitor based SCR ignitor that automatically releases the hold state by making the capacitor charge current low enough.
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I worked with flash bulbs as a school boy. If I remember right, the flash units often used a capacitor to store the ignition energy. Respectively the battery could be made much smaller. I presume you can design a capacitor based SCR ignitor that automatically releases the hold state by making the capacitor charge current low enough.