H. Wetzer
Pfronten Bayern // ΜΤ-017711 // 1880

Telegraph sounder

DImensions: 11,7 x 12 x 10,5 cm Location: Germany Material: wood,metal,bakelite

Metal desk apparatus recording Morse signals. Its international name is telegraph sounder and it is an electromagnet connected to the telegraph circuit through a telegraph converter. Every time the current flowed and ended, the metal armature stretching between two round coils knocked on the metal anvil producing the Morse signals sounds.

In Copyright

In copyright