• Country
• Switzerland

• Manufacturer / Brand
• Biennophone; (Marke)

• Year
• 1948–1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 11702

• • alternative name: Sport AG Biel || Velectra AG

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

• Number of Tubes
• 6

• Valves / Tubes
• 7S7 7H7 7K7 7C5 EM4 7Y4

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 17 cm = 6.7 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 4821 - Biennophone; Marke

• Dimensions (WHD)
• 460 x 290 x 230 mm / 18.1 x 11.4 x 9.1 inch

• Notes
• KW-Lupe

• Net weight (2.2 lb = 1 kg)
• 9.5 kg / 20 lb 14.8 oz (20.925 lb)

• Price in first year of sale
• 555.00 SFr

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Thali-Schemasammlung und Tungsram-Röhrenbestückung.

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 512 models, 293 with images and 347 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Biennophone; (Marke)