Links from the following pages are to web sites not affiliated with TTC:

• Texas Instruments 
• National Semiconductor 
• Freescale Semiconductor 
• TESLA 
  This link is to the PBS Special Tesla Master of Lighting, an in-depth television documentary about the life, times, and legacy of Nikola Tesla, American inventor and visionary
• Transistorized
  This link is to the PBS NOVA special on the the history of the transistor.
• Molecular Expressions Electricity & Magnetism, Interactive Java Tutorials