• Country
• Switzerland

• Manufacturer / Brand
• Carma, Präzisionswerkstätte; Winterthur

• Year
• 1927/1928 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 11802

• Number of Tubes
• 3

• Valves / Tubes
• unknown_Tube unknown_Tube VT126_TKD

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 Special; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Neo-Reaction 217 - Carma, Präzisionswerkstätte;

• Notes
• Neutrodyne 200-2500m

• Price in first year of sale
• 320.00 SFr

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 17 models, 6 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Carma, Präzisionswerkstätte; Winterthur