• Country
• France

• Manufacturer / Brand
• Union-Radio; Issy-les-Moulineaux

• Year
• 1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 297747

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 7

• Valves / Tubes
• 58 57 56 58 75 47 80

• Main principle
• Superhet with RF-stage; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: S7 [cadran arc de cercle] - Union-Radio; Issy-les-

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Source of data
• -- Schematic

• Mentioned in
• -- Original prospect or advert (La Science et la Vie, No 194, Août 1933)

• Other Models

• Here you find 7 models, 5 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Union-Radio; Issy-les-Moulineaux