Project 4.1 The Transistor Switch

Complete Electronics Self Teaching Guide

Electronics Projects & Circuits



Discussion Forums

Tutorials and Information


Supplemental Photos

Key to Your Schematics

Soldering SMDs

The Right Supplier

Speaking of Gadgets

Electronics Projects For Dummies:   

                    Project Updates   

About Us 

Privacy Policy

Contact Us

Link to Us


Visit our other Website

Understanding Nanotechnology







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

Data sheets

PN2222 datasheet


Project 4.1 Breadboarded buzzer circuit


Project 4.1 Breadboarded LED circuit


Project 4.1 Test setup