• Country
• Italy

• Manufacturer / Brand
• Marconi Italiana (Marconifono), Officine / Ufficio Marconi; Genova, Roma

• Year
• 1917

• Category
• Military transmitter

• Radiomuseum.org ID
• 178346

• Main principle
• Transmitter

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Trasmettitore di bordo a scintilla MNM - Marconi Italiana Marconifono,

• Shape
• Tablemodel, with any shape - general.

• Notes
• One of the very early spark transmitters. also used aboard aircraft and airships, was the MNM (Marconi Not Modified). Its keyed spark-gap operated from external batteries at a wavelength of 300m with some 40W power.

• External source of data
• Ali ed Onde, F. Soresini, Ed. A.I.R.E.

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 40 models, 25 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marconi Italiana (Marconifono), Officine / Ufficio Marconi; Genova, Roma