Quick Answer:The Demonstration Dynamo Model is a hand-driven dynamo on a 230 x 90 mm base plate, with a 120 mm hand-drive pulley belted to a smaller dynamo pulley for a step-up ratio and a lamp as a simple output indicator.
Last updated: 18 October 2026
Key Features
Same basic assembly as the Demonstration Electric Motor.
120 mm hand-drive pulley coupled by rubber belt to the smaller dynamo pulley.
Electrical output through a pair of 4 mm sockets.
Lamp provided as a simple output indicator.
Can also run as a motor on 6–8 V DC.
Technical Specifications
Specification
Value
Base plate
230 x 90 mm
Hand-drive pulley
120 mm diameter
Drive
Rubber belt, step-up ratio
Output
Pair of 4 mm sockets; indicator lamp
Use as motor
6–8 V DC
How It Is Used
Turning the hand pulley spins the dynamo and lights the lamp, showing mechanical energy being converted into electrical energy. Connected to a DC supply instead, the same unit runs as a motor.
Frequently Asked Questions
Can the Demonstration Dynamo Model be used as a motor?
Yes. It may also be used as a motor on a 6–8 V DC supply.
