• Country
• Germany

• Manufacturer / Brand
• Studer GmbH, Willi (ReVox); Löffingen

• Year
• 1948–1950 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 198272

• • Brand: ReVox (brand)

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

• Number of Tubes
• 7

• Valves / Tubes
• EF40 EF40 ECC40 ECC40 EL41 EM34 EZ40

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Tape Recorder

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 14 cm = 5.5 inch

• Power out
• 4 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Dynavox [EF40] - Studer GmbH, Willi ReVox;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 530 x 325 x 375 inch / 13462 x 8255 x 9525 mm

• Notes
• Antrieb: Ein schwenkbarer Motor mit Gummi der die Bakalitteller antreibt und ein Gummiriehmen der die Capstanwelle antreibt.
  Geschwindigkeit: 7,5/19 cm/sec.

• Net weight (2.2 lb = 1 kg)
• 17.5 kg / 38 lb 8.7 oz (38.546 lb)

• Price in first year of sale
• 1,500.00 CHF

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Edgar Müller. See "Data change" for further contributors.

• Other Models

• Here you find 84 models, 65 with images and 30 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Studer GmbH, Willi (ReVox); Löffingen