• Country
• Czechoslovakia

• Manufacturer / Brand
• Sigma-Radio, Ing. B. Szathmary; Prag

• Year
• 1940

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 203998

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Metal case

• from Radiomuseum.org
• Model: Military headset SPB - Sigma-Radio, Ing. B. Szathmary

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes
• 2 × 27 Ohm ( 0.19 Cu ).

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 49 models, 26 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sigma-Radio, Ing. B. Szathmary; Prag