investigatory projects

Book Abstract by: marvinprincess

Original Author: vincess

Summary rating: 2 stars (8 Ratings)
Visits : 667
words:300
Comments : 0

BUILD A LIGHT FLASHER CIRCUIT ON STRIPBOARD
CLICK HERE TO BUY THE CD Count holes to get components in

correct position. During construction ensure that all components and wire links are flat on the board. When fitting components with two leads, such as resistors, bend the leads outwards (only slightly) to stop them falling out of the board during soldering.
Don't bend the the leads flat as it makes them difficult to remove if needed. Solder just one pin of the transistors and check that they are straight before soldering the other two.
After construction connect 9 volts to the terminal pins and check that the LEDs flash. Note that the flashing speed can be altered by changing the values of the capacitors.