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how to calculate resistor to a base of a 2n2222? - #24 by system - General Electronics - Arduino Forum
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All About 2n2222 Transistor and Its Circuit Diagrams | PDF | Transistor | Bipolar Junction Transistor
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![Tube Time on Twitter: "here's a fun little mystery! see this 2N2222A transistor in a TO-18 metal case? there's 12V through a 1K resistor from the emitter to the base (reverse biased Tube Time on Twitter: "here's a fun little mystery! see this 2N2222A transistor in a TO-18 metal case? there's 12V through a 1K resistor from the emitter to the base (reverse biased](https://pbs.twimg.com/media/D9isizYU8AAXmhh.png)
Tube Time on Twitter: "here's a fun little mystery! see this 2N2222A transistor in a TO-18 metal case? there's 12V through a 1K resistor from the emitter to the base (reverse biased
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