arduino - BC547/BC548 with 5V at base can't control 12V at collector-emitter? - Electrical Engineering Stack Exchange
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Power Transistor, Mosfet, Thyristor and Voltage Regulator Assortment Kit, 82 pcs, 24 Types: Amazon.com: Industrial & Scientific
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Using Transistor as a Switch | ermicroblog
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arduino - BC547/BC548 with 5V at base can't control 12V at collector-emitter? - Electrical Engineering Stack Exchange
12V Motor Control With 5V Arduino and NPN Transistor As Speed Control Switch : 4 Steps - Instructables
Lab: Using a Transistor to Control High Current Loads with an Arduino – ITP Physical Computing
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Power Transistor, Mosfet, Thyristor and Voltage Regulator Assortment Kit, 82 pcs, 24 Types: Amazon.com: Industrial & Scientific
Control a 12v from 5v. - General Electronics - Arduino Forum
