
Price:
Application : Transmitting Morse code in telegraph systems, educational demonstrations
Equipment Materials : Metal body with brass and steel components
Control Type : Press lever mechanism
Type : Other, Morse Sounder
Material : Metal, Brass, Steel
Features : Clear sound, durable construction, adjustable contact, easy operation
Application : Physics laboratory, education, spectroscopy experiments
Equipment Materials : Brass, Aluminum, Steel, Glass
Control Type : Manual vernier and adjustment screws
Type : Other, Student Spectrometer
Material : Metal with glass components
Features : Collimator and telescope with precise adjustment, Prism table with rotation, Locking screw for stability
Application : Powering bicycle lights and electronic devices
Equipment Materials : Metal, Plastic Components
Control Type : Manual clampon/off
Type : Other, Bicycle Dynamo Assembly
Material : Steel body with copper winding
Features : Compact design, easy mounting, weather resistant
Application : Educational Physics Demonstration, laboratory use
Equipment Materials : Mounted on a wooden or plastic base
Control Type : Manual on/off switch
Type : Other, Demonstration Electric Bell
Material : Steel bell dome with metal support and copper coil
Features : Clear bell ringing action, visible mechanism, durable base, easy operation