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  1. jfalcon

    Simple Switch

    I am using the output pin of a MC68HC908AB32 to toggle a NPN transistor MMBT4401. The Base is biased with a 4.7K resistor and has a 10K pull down prior to the base of the the NPN. The emitter is tied to ground and the collector is tied to the base of a PNP MMBT4403 transistor. The emitter is...

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