• Country
• France

• Manufacturer / Brand
• Visaudia, Martin-Duviard; Paris

• Year
• 1949/1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 251585

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1T4 1S5 3S4

• Number of Transistors

• Semiconductors
• Selengleichrichter

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Line / Batteries (any type) / AC/DC: 110 / 1.5 & 67.5 Volt

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

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Portatif MD77A [PO-GO] - Visaudia, Martin-Duviard;

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 220 x 70 x 150 mm / 8.7 x 2.8 x 5.9 inch

• Mentioned in
• -- Original prospect or advert (La Radio Professionnelle, No 180, Jan. 1950)

• Author
• Model page created by Manfred Rathgeb. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Visaudia, Martin-Duviard; Paris