Grasshopper Key
Marconi's Wireless Telegraph Co. Ltd.
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Marconi's Wireless Telegraph Co. Ltd.
- Year
- 1899
- Category
- Morse-Equipment & TTY, RTTY, TDD etc.
- Radiomuseum.org ID
- 258203
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Grasshopper Key - Marconi's Wireless Telegraph
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 130 x 330 x 220 mm / 5.1 x 13 x 8.7 inch
- Notes
-
'Grasshopper' Send-Receiver Morse Key, with tapered ebonite hand-grip, ebonite back-arm, brass components including four terminals, on mahogany base. Long ebonite arm snapped clean through and separated. Used in 1899, the long ebonite arm fell into place when the key was not used for sending, thus connecting the aerial with the receiver (Denman, No. 12). This Morse key was used for early wireless experiments and on ships and shore stations. The 'Grasshopper' Send-Receiver Morse Key, known as such because of its distinctive shape, was initially developed by Marconi around 1896.
- Author
- Model page created by Alan Larsen. See "Data change" for further contributors.
- Other Models
-
Here you find 94 models, 92 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Marconi's Wireless Telegraph Co. Ltd.
Museums
The model Grasshopper Key can be seen in the following museums.