Quiz Buzzer Project Kit

Two people (or two teams) can used the quiz buzzer to show who pressed their button first. When the button is pressed the buzzer sounds and either the red or green light is illuminated to show who was fastest.

This project is brilliant for demonstrating a wide range of electronics. It uses push to make & push to break switches, thyristors as latches, transistors, logic gates, LEDs & buzzers.

This kit contains:

• 1 x 4081 Quad 2 Input AND Gate IC
• 1 x 4071 Quad 2 Input OR Gate IC
• 2 x 14 Pin IC Holders
• 2 x Push To Make Switches
• 1 x Push To Break Switch
• 1 x 5mm Red LED
• 1 x 5mm Green LED
• 5 x 10Kohm Resistors
• 2 x 220ohm Resistors
• 2 x 2N5061 Thyristors
• 1 x BC547B NPN Transistor
• 1 x Piezo Buzzer
• 1 x PP3 Clip Lead
• 1 x 3AA Battery Holder
• 1m connecting wire
• 1 x Quiz Buzzer PCB
• Supplied in Tough Plastic Box with internal dimensions of 95 x 60 x 35mm

PCB dimensions: 59.5mm x 43mm.

Requires 3 x AA Batteries, available separately.

Click here for build instructions.