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About my Free Virtual Learning System (VLS).  Please provide feedback via      

Virtual Skill testing + Virtual Laboratory Experience + Links to Top Theory Sites = Best Free Online VLS.

This course is a Virtual Laboratory tutorial in electronics.  Over the last decade,  I have produced a set of free online circuit simulations and animations that constitute a interactive virtual laboratory for students studying electronics or preparing for an IT career .  My virtual interactive circuit troubleshooting exercises cover only a small sample of circuits covered in must texts or college courses. This selection of circuits ranges from simple resistive circuits thru advanced operational amplifiers, digital circuits and computers .   I believe that those who  master troubleshooting my narrow range of virtual circuits or systems will develop the skills necessary to troubleshoot a wide range of circuits and systems that they will be confronted with now and in the future.  I feel quite certain that someone who could not perform the majority of my virtual troubleshooting exercises would be in need of further training in order to become a competent electronics troubleshooter.  This person could benefit from my free virtual laboratory course. 

I provide a reading list for each topic that a student can use to learn the relevant subject matter.  This site and my virtual electronics kits test your electronics skill.  My digital simulations create screens of data in binary format that show the status of my virtual computer and many digital circuits.    





Free Class Books
(PDF files)

Electronic Concepts

Force Fields Visualized


My Free Online e-Books(Webs)

  Basic Electronics

 Electronic Troubleshooting

  Gif Circuits

Electronic Circuits with Faults 


My Free Downloads 

 Virtual electronic kits




Site Linker
Our optional reading list.
Site Linker allow me to check all the links that several of my Web site uses at a single location.






Curriculum Status

This non credit course Integrates all my skill testing Webs and free e-books with links to  select sites that offer free tutorials and courses in electronics, physics, and IT training. 


New Feature 2014: LOOK INSIDE! e-books and read what you deem relevant!  I locate e-books with free browse pages on current subject matter.

New! (December 2013) Free Virtual IT Prep school .  This laboratory as been revised to provide the minimal amount of electronics training that an IT (Information Technology, Internet, or computer) specialist requires.

New! (December 2013) free downloads of digital system simulations.  These free programs use compact compiled code that require a Windows operating system.  Tested OK with Windows 2000, Vista, and Windows 8. 

New! (July 2012) Online Free Electronics Interactive Laboratory Course.  This course tests your ability to apply what you have learned about electronics to realistic troubleshooting problems.  This online coarse is formatted as a college course.  I supply the interactive tests and a laboratory activity, and just like a good college course I a provide a reading list ( links to online tutorials) that teach electronics theory.  If you are reading a book on electronics ignore reading list and links to other sites and just use this Web as your virtual laboratory.

New 2007: We have launched Quarterly publications about alternative energy:  The Energy Matrix e-zine.The Energy Matrix e-zine Publication of new issues discontinued.



My Integrated Curriculum  now has three main performance objectives.

1. Perform simulated circuit troubleshooting of simulated circuits in my eBooks (See Class Books in left column)

2. Use Internet to find Information, Calculators, etc. (See Site Linker in left column)

3.  Learn to use JavaScript to do calculations. No calculations by hand or calculator will be included in course.  (See JavaScript Tutorial  in left column)


Contact Bill at BilPat4342@AOL.com )  with questions about site.  

Questions should be limited to problems with simulations or animations in our eBooks.  



Electronics, Physics, Mathematics  for the vocational student:  Tutorial provides unique non-engineering, calculus free technical education.   Click here to see all our publications                   

Questions or problems regarding this web site should be directed to BilPat4342@AOL.com

Copyright © 2003 Science Ebooks,  All rights reserved.
Last modified: Monday July 07, 2014.