Awilda Melendez
EdTec 561
Fall Semester 2003-2004
 

 

   
  Home   Content Outline
 
         
  Content Outline      
 

Treatment

  Concept
 
 








 
  • The breadboard or prototyping board (proto board for short) allows you to assemble electrical circuits and easily perform tests and measurements upon the circuits.
  • Also known as "solderless" breadboarding socket.
  • Components such as transistors, resistors, capacitors, diodes and integrated devices tie directly to the board.
 
      Physical Description  
     
  • Rectangular plastic block with many small holes in the top.
  • Holes are arranged in rows and enable you to insert wires into them to make electrical contact.
  • Under the plastic material there is an array of metallic strips or conductors that interconnect the holes around which you can build electric circuits.
  • Holes serve as electrical connection points which are able to receive wires and clip onto them to hold them in place and insulates them from each other.
  • Internal metallic strips are not visible.
 
      Metallic Strip or Conductor  
     
  • Heart of the breadboard.
  • Made of nickel silver (reasonably conductive, springy and corrosion resistant).
  • Each strip has various pairs of independent fingers or clips to hold a wire.
    Each pair of fingers or clips is located under a hole.
  • The socket strips are used to connect components and usually have 5 contacts or clips.
  • The bus strips are used to distribute power and ground voltages and usually have 25 contacts or clips.
  • The breadboard is a combination of socket strips, bus strips and binding posts.
 
      Breadboard Health  
     
  • To keep your breadboard in good condition use only solid wire (no. 22, 23 or 24), never insert too large component lead, bent wires or more than one wire on a hole.
 
      Breadboarding  

  • Is an art that cannot be learned in few minutes.
    It takes practice and experience.
 
 
Produced by Awilda Melendez at the Department of Educational Technology,
San Diego State University
Instructor: Bob Hoffman
© 2003 by Awilda Melendez. All rights reserved.