• Country
• Germany

• Manufacturer / Brand
• UNBEKANNTE FIRMA D / A / CH - Siehe Anleitung unter der «Firma»

• Year
• 1954 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 140509

• • alternative name: Unknown, Custom Built

• Number of Tubes
• 5

• Valves / Tubes
• EC92 ECH81 EF41 EABC80 EL41

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Frankfurt - UNBEKANNTE FIRMA D / A / CH -

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 470 x 310 x 235 mm / 18.5 x 12.2 x 9.3 inch

• Notes
• Hersteller eventuell Jotha?

• Source of data
• - - Data from my own collection

• Author
• Model page created by Denis Siegmund. See "Data change" for further contributors.

• Other Models

• Here you find 466 models, 405 with images and 40 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from UNBEKANNTE FIRMA D / A / CH - Siehe Anleitung unter der «Firma»