It will be rather easier to figure out if you can make a chart - like a truth table - listing the various conditions.
It sounds as though you want to keep a relay activated for about 1 second each time after an indicator light flashes. Are you familiar with the 555 timer IC? It's a popular IC for generating timing intervals. It should be able to drive a relay. The time period is adjustable with a capacitor and a couple resistors.
Also I found this picture online that might help me, but its lacing some details I cannot calculate(capacitor voltage, resistor wattage)
what capacitor and resistors did you use?
The transistor is driving an inductive load, should not be there a snubber circuit to avoid damaging the transistor?When the incoming pulses stop, the capacitor discharges completely after 2-3 seconds, and the transistor turns off.
Of course it will work, but generally higher transistor leads to slow it down, meaning it's turn on time and turn off time are higher than the 2N2222 which means power looses in commutation... Anyway, do not worry about that..also, I have some KSP 2222 ATA transistors(NPN 800mA/75V) lying around, would that work as fine as the 2N2222?
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