• Country
• Czechoslovakia

• Manufacturer / Brand
• Sedmidubsky, Praha

• Year
• 1930 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 173852

• Number of Tubes
• 3

• Valves / Tubes
• B443 E424 505

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 120/220 Volt

• Material
• Wooden case

• from Radiomuseum.org
• Model: Perpetuum Mobile SII - Sedmidubsky, Praha

• Shape
• Tablemodel, with any shape - general.

• Author
• Model page created by Gabriel Toth. See "Data change" for further contributors.

• Other Models

• Here you find 14 models, 0 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sedmidubsky, Praha