led - 2N2222 NPN transistor base resistor calculation - Electrical Engineering Stack Exchange
Tube Time on X: "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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Simple Touch Switch Circuit using 2n2222 Transistors
Would somebody be kind enough to ELI5 how to calculate the base resistor required on a 2N2222A (used as a switch) when using a 5V Arduino Uno to control a solenoid actuator.
How to use the 2N2222 Transistor (NPN) (with examples) - DIY Engineers
BJT Transistors Assortment Kit - Set of 210 PNP and NPN Assorted Transistors with 250 Assorted Resistors -
arduino and the use of a 2n2222 transistor as a switch - YouTube
arduino - What determines how much current can flow through a 2N2222 A? - Electrical Engineering Stack Exchange
Calculating transistor base resistor - General Electronics - Arduino Forum
2N2222A Pinout, Features, Equivalent & Datasheet
How to use the 2N2222 Transistor (NPN) (with examples) - DIY Engineers