Complete Electronics Self Teaching Guide
Electronics Projects & Circuits
Electronics Projects For Dummies:
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Project 4.1: The Transistor Switch
This is the support page for Project 4.1; The Transistor Switch, from Complete Electronics Self Teaching Guide with Projects.
Parts list
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Resistors
- One 100-ohm, 0.5-watt resistor.
- One 1 kΩ, 0.25-watt resistor.
- One 10 kΩ, 0.25-watt resistor.
- One piezoelectric buzzer with a minimum operating voltage of 3 volts DC. Using a buzzer with pins (such as part # SE9-2202AS by Shogyo International) enables you to insert the buzzer directly into the breadboard. If you use a buzzer with wire leads (such as part # PK-27N26WQ by Mallory), you need another terminal block.
- One infrared LED.
- One infrared photodiode.
- One PN2222 transistor.
- Two breadboards.
- Two terminal blocks.
- Two battery snap connectors.
- One 9 V battery.
- One 6-volt battery pack (4 AA batteries).
Data sheets
Photos
Project 4.1 Breadboarded buzzer circuit
Project 4.1 Breadboarded LED circuit
Project 4.1 Test setup