Tuesday, January 22, 2013

Transistor Switching


Materials:
AC adapter
breadboard, wire, meter x2
LED
Resistors, various
Pushbutton, SPST
NPN Transistor 2N3904

Demonstrating a Fingertip Switch




A transistor is a current amplifier with a linear multiplier. Completed a test to prove this.
2x 180 Ohm resistors
2x 2K Ohm resistors


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The beta gain of this transistor is approximately 4:


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