Chapter Resources: Chapter Assignments
Chapter 5 - Transistors

1. Transistors come and transistors go. One of the problems that technicians must solve is finding good substitute parts. Find some substitution guides and learn how to use them. Talk to other students, practicing technicians, and your instructor and ask them how they find replacement parts. Try to find out when substitutes work well and when they can be a problem. Can you find any Websites for substitutes?
   
2. The URL below is the Discrete Index of the Questlink Design Center. It is a window to electronic components such as BJTs, FETs, diodes, and optoelectronic devices. By searching and browsing, you will find many interesting facts. As an example, there is an NPN transistor with the part number BUS50 that has a current rating of 70 amperes.

   http://www.questlink.com/questlink/categorySearch.jhtml?type=cat&param=310000

   Browse this site and collect part numbers and characteristics for at least 6 devices. Share what you find with your instructor and classmates.

OPTIONAL ASSIGNMENT:

• Download the file step motor and follow the directions in the Circuit Description window. You will need Electronics Workbench® version 5 or later to perform this assignment.
  
• Instructions for downloading EWB® files:
  Click on the link, then save the file to a location on your hard drive.
  Locate the file on your hard drive [file name is in brackets above] and open it.
  Unzip the file at the WinZip dialogue box, then close the box.
  Open the file within your Electronics Workbench software to view.