I am working on circuit, I need to make a switch. What I want it to do is; when the circuit is at 4 volts it goes somewhere and when it is 6 volts it goes somewhere else. I think I can use a BJT but how?
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Looking at all the various schematics of op amps, regulators, etc. I see lots of multicollector or multiemitter BJTs (and why no multibase?)...
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