​These resources are free to use! No need to buy books, manuals of videos elsewhere. We have provided different resources which may cover the same topics but with different approaches, so choose the one you are more comfortable with or use them all! Study and prepare for certification as a  Certified Locksmith and Security Specialist (CLASS).  Got CLASS? Get some with the Society of Professional Locksmiths!

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Additional Resources

Click on the Yellow resource links listed below to enjoy a fun and easy way to learn electricity/electronics.

Interactive Simulators

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Video Lectures & Lab

Video instructions are provided by Tim Fiegenbaum of North Seattle Community College. Based on the book Electronics for Computer Technology by David Terrell. © 2003 Delmar Learning, a part of Cengage Learning, Inc. All rights reserved. Reproduced by permission.

Electronic Systems
Representative Systems
System Notations
Physical System Hierarchy
System Connectivity
System Level Troubleshooting 
Circuit Simulation

Basic Electronics and Units of Measure
Electrical Quantities
Light and Other Waves
Magnetism and Electromagnetism

Basic Components and Technical Notation
Technical Notation
Wire and Cable
Electronic Components Resistors
Electronic Components

Circuits
Basic Requirements for Current
Series Circuits Part 1
Series Circuits Part 2  
Series Circuits Part 3 
Voltage Sources
Parallel Circuits
Series Parallel Circuits
Complex Circuits
Ground and Other Reference Points

Circuit Troubleshooting
Troubleshooting Series Circuits 
Troubleshooting Parallel Circuits 
Troubleshooting Series-Parallel Circuits 
Troubleshooting Strategies

Transformers

Electronic Lab
Electronic Access Control
CCTV / Video Surveillance 
Cable Management