• Country
• Czechoslovakia

• Manufacturer / Brand
• Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice

• Year
• 1938–1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 23117

• • alternative name: Telefony Microfona

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

• Number of Tubes
• 3

• Valves / Tubes
• EBF2 EL3 AZ1

• Main principle
• TRF with diode detector; ZF/IF 1 kHz; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Lubina MK210 - Microphona Mikrofona, Bratri

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 340 x 334 x 230 mm / 13.4 x 13.1 x 9.1 inch

• Price in first year of sale
• 1,035.00 CSK

• External source of data
• Erb

• Source of data
• Ceskoslovenske prijimace 1933-1945, Baudys 1947

• Other Models

• Here you find 69 models, 52 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice