Model AC/DC Generator – Hand-Operated Dynamo

The Model AC/DC Generator is a hand-operated dynamo for demonstrating how mechanical motion can be converted into electrical energy. Designed for school physics lessons, it allows students to investigate the difference between alternating current (AC) and direct current (DC) using the generator's brush and commutator arrangement.

Key Features

• Demonstrates the generation of both AC and DC electricity.
• Adjustable brush positions allow students to compare the two types of electrical output.
• Useful for teaching electromagnetic induction, generators, dynamos and energy conversion.
• Supplied with a spare drive belt and instructions.

Specifications

• Output: AC or DC, depending on brush position.
• Stated voltage: greater than 8V unloaded; greater than 4.5V under load (as listed for this model).
• Approximate dimensions: 290 × 180 × 190mm.
• Included: model generator, spare belt and instructions.

Classroom Applications

Use the model to show how rotating a generator produces an electrical output, compare AC and DC generation, and discuss the roles of brushes and the commutator. For measurements and further investigations, suitable accessories include a digital multimeter and banana plug test leads, subject to connection compatibility.

Note: Actual output depends on operating speed and electrical load. This is an educational demonstration model, not a regulated power supply.