• Country
• Germany

• Manufacturer / Brand
• Wandel & Goltermann; Reutlingen

• Year
• 1950–1953

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 19169

• • alternative name: Wago Wandel & Goltermann

• Number of Tubes
• 5

• Valves / Tubes
• EF12 EF12 EF12 EL12 EL12

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 12 Volt

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

• Power out
• 20 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: ZV20 [Ausf. N] - Wandel & Goltermann;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 475 x 275 x 280 mm / 18.7 x 10.8 x 11 inch

• Notes
• 2 Eingänge; Ausgang 17 V/15 Ohm; Frequenzgang 40-10000 Hz. Gestellmontage.

• Net weight (2.2 lb = 1 kg)
• 16.7 kg / 36 lb 12.5 oz (36.784 lb)

• Price in first year of sale
• 980.00 DM

• External source of data
• Erb

• Source of data
• Kat.d. Rundf.Gr.Handel 1950/51 / Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 172 models, 133 with images and 76 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wandel & Goltermann; Reutlingen