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Fundamentals of Electronics
How does an electrical circuit work? What are relays, photo transistors and reed contacts? These and other questions about electrical control and electrical engineering are answered by building and experimenting

• REQUIRES 9V battery (not included).
• STORAGE SUGGESTION: with each PROFI E-Tech set we recommend 3 Sorting Box 500--258x186 (#94828) with dividers and 1 Base Plate 258x186 Cover (#32985)
• Additional Information for Educators and Administrators
• This set can be used in the classes addressing the following topics: Electronics, Circuits, Science, possibly Physics.
• Specific concepts addressed with this set: Electrical engineering and electro-mechanical automation of systems without a computer.
• Electric Circuits—interrupted circuits and closed circuits.
• Build a model of a Torch/Light, and experiment with using the pushbutton as either a make or break contact. Do the same experiment with the Refrigerator Model.
• Circuit Diagrams—learn the components used, and draw diagrams for each of the models you work with.
• Conductors and Non-Conductors.
• Build and experiment with a Continuity Tester.
• Series and Parallel Connections—learn about and experiment with these.
• AND-OR Circuit--Build and diagram an AND-OR Circuit, and experiment with both series and parallel connection variations.
• Two-Way Connections---build a simplified model of “staircase lighting” to learn how this works by using a change-over switch, aka commutator.
• Electric Motors and Polarity—learn the functional principle of an electric motor.
• Build a model of a working elevator to study the principle behind a motor control with two directions of rotation.
• Electro-Mechanical Controls—Build a flashing light control and a traffic light control.
• Controls Using Electronics/Microprocessor Control—learn about a microprocessor system and programs Learn how magnetic sensors work by building a model of a safe door with an alarm system using such a sensor.
• Learn about phototransistors and utilize one in building a model of a working hand dryer.
• Do further experiments with a microprocessor and sensors by building models of a punching machine, automatic garage door opener, parking garage barrier and a brick dispensing.

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A 15% restocking charge will be applied to the return if a replacement order of equal or greater value is not placed at the time of the return. Defective merchandise must be returned to the manufacturer for repair or replacement. No refunds will be given on opened products. No refunds will be given on downloads. No refunds will be given on any school/non-profit licensing and media products. No refunds will be given on opened Adobe Student Teacher products. Refunds will be issued only if the above terms are met. Original shipping fees will not be refunded. We reserve the right to reject any return that does not comply with the above terms.

Warranty Policy
Warranties are the responsibility of the manufacturer. Please visit the manufacturer's website for additional information on their particular warranty policies.