• Country
• Germany

• Manufacturer / Brand
• Thiele; Leipzig (Ostd.)

• Year
• 1954 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 109848

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

• Number of Tubes
• 1

• Valves / Tubes
• ECC83

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: M4 - Thiele; Leipzig Ostd.

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 216 x 60 x 60 mm / 8.5 x 2.4 x 2.4 inch

• Notes
• Kondensatormikrofon. Richtcharakteristik umschaltbar (Kugel-Niere), Auslöschung bei Niere: 10 dB (180°), Empfindlichkeit: 3 mV/µB, Frequenzbereich: 30-15000 Hz, Abweichung: +3 dB, Impedanz: 200 Ohm, Leistungsbedarf: 10 VA.

• Net weight (2.2 lb = 1 kg)
• 0.9 kg / 1 lb 15.7 oz (1.982 lb)

• Source of data
• -- Original-techn. papers.

• Other Models

• Here you find 3 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Thiele; Leipzig (Ostd.)