• Country
• Soviet Union

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

• Year
• 1934–1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90800

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

• Number of Tubes
• 5

• Valves / Tubes
• СО-124 СО-124 СО-118 УО-104 ВО-116

• Main principle
• TRF with regeneration

• Tuned circuits
• 3 AM circuit(s)

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

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

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

• Power out
• 0.8 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: ÈČS-4 {ЭЧС-4} - MEMZA Electromechanical Works

• Shape
• Tablemodel, with any shape - general.

• Notes
• Coverage 200-2000 meters in 4 ranges.

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

• Mentioned in
• -- Schematic

• 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