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Telegraph Key / Morse Code Key / Tapping Key / Contact Key
A simple hand-operated momentary electrical switch designed to create controlled electrical pulses. Its press-and-release mechanism closes and opens a low-voltage circuit, demonstrating how short and long signals are produced for Morse code communication. The durable base and conductive metal assembly support repeated educational and hobby use.
Product Specifications
Product Name Contact Key Product Code TGKY02 Also Known As Telegraph Key, Morse Code Key, Tapping Key Function Momentary contact switch for Morse code and circuit demonstrations Base Material Bakelite Metal Parts Nickel-plated brass Operation Manual press-and-release contact Use Type Educational, demonstration, and hobby electronics use Signal Principle Short and long electrical pulses representing dots, dashes, and spaces Recommended Educational Range Comparable educational telegraph keys are commonly listed for grades 5–12
Applications and Benefits:
- Morse code practice and demonstrations
- Basic electricity and circuit lessons
- Telegraphy and communication-history activities
- STEM and physics classroom experiments
- Simple on/off switching in low-voltage circuits
- Electronics hobby and maker projects
- Demonstrates how mechanical switching creates electrical signals
- Supports instruction on International Morse Code in training contexts
Caution:
Use only in appropriate low-voltage educational circuits. Not intended for direct connection to mains electricity. Adult supervision is recommended for classroom or student use. Inspect contacts and terminals before use to ensure secure connections. Keep small hardware away from young children.
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