• Country
• Czechoslovakia

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

• Year
• 1935/1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 23094

• • alternative name: Telefony Microfona

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

• Number of Tubes
• 2

• Valves / Tubes
• AL2 AZ1

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 18 cm = 7.1 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Baby MK102 - Microphona Mikrofona, Bratri

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 393 x 240 x 195 mm / 15.5 x 9.4 x 7.7 inch

• Notes
• 2-Kreis-Reflexempfänger mit Diode (Sirutor)

• Net weight (2.2 lb = 1 kg)
• 6.9 kg / 15 lb 3.2 oz (15.198 lb)

• 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