• Country
• Soviet Union

• Manufacturer / Brand
• MEMZA Electromechanical Works (ex VTU), Moscow

• Year
• 1928

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 91759

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

• Main principle
• Crystal or Solid State Detector; Crystal-detection 1 circuit (no tubes)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast and LongWave in ONE range.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: DV-4 {ДВ-4} - MEMZA Electromechanical Works

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 160 x 110 x 130 mm / 6.3 x 4.3 x 5.1 inch

• Notes
• Coverage 300-1800 m. Plug-in crystal detector.

• Net weight (2.2 lb = 1 kg)
• 0.8 kg / 1 lb 12.2 oz (1.762 lb)

• Source of data
• -- Collector info (Sammler)

• Author
• Model page created by Zenonas Langaitis. See "Data change" for further contributors.

• Other Models

• Here you find 18 models, 18 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MEMZA Electromechanical Works (ex VTU), Moscow