• Country
• Germany

• Manufacturer / Brand
• Neumann Mühlheim an der Ruhr - Broich

• Year
• 1955 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 154132

• Number of Tubes
• 4

• Valves / Tubes
• ECC83 ECC83 EL34 EL34

• Number of Transistors

• Semiconductors
• Tr.Gl.=Metal-rectif.

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 120; 220; 240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: NVF 25 Schaltung: ZN 4272 - Neumann Mühlheim an der Ruhr

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 520 x 210 x 240 mm / 20.5 x 8.3 x 9.4 inch

• Notes
• Neumann NVF 25, Schaltung: ZN 4272;
  Mono, 100 V/400 Ohm Ausgang.

• Net weight (2.2 lb = 1 kg)
• 14 kg / 30 lb 13.4 oz (30.837 lb)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 4 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Neumann Mühlheim an der Ruhr - Broich