United Scientific: TGKY01 Telegraph Key (Secondary Study)

A hands-on telegraph key for exploring the tactile action and timing of manual Morse-code operation during a history-of-communication study.

Educational Specifications

• Subject: Technology History; Communication; Physical Science
• Grade / Age Level: Suggested instructional use: secondary study with adult guidance
• Format: Telegraph key mounted on a plastic base
• Manufacturer: United Scientific
• Model: TGKY01
• Base Dimensions: 11 × 5 cm
• Materials: ABS base with stainless steel connections
• Connections: Two screw-type connecting terminals
• Country of Origin: India

Tactile History Activity

Students press and release the key to explore its mechanical feel and practice short and long Morse-code timing patterns. This unpowered activity focuses on the physical experience of operating a telegraph key; no batteries, wiring, or additional circuit parts are needed for this use.

The key alone does not transmit messages or produce an electrical light or sound signal. Visual message exchange is practiced separately with the bundle’s two signaling lights.