• Country
• Germany

• Manufacturer / Brand
• Sennheiser Electronic (Labor W); Wennebostel

• Year
• 1951–1953

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 113855

• Number of Tubes
• 5

• Valves / Tubes
• EF40 EAF42 ECC40 UL41 UL41

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 220; 240 Volt

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

• Power out
• 15 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Labor W, Mischverstärker VK151 [EF40, EAF42] - Sennheiser Electronic Labor W;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 400 x 120 x 160 mm / 15.7 x 4.7 x 6.3 inch

• Notes
• 4 Eingänge; Ausgangsspannung: 100 / 50 / 15 / 11 / 7,7 V; Ausgangsimpedanz: 675 / 200 / 15 / 8 / 4 Ohm; Frequenzgang: 25···20000 Hz; Saalregleranschluss.

• Net weight (2.2 lb = 1 kg)
• 8.4 kg / 18 lb 8 oz (18.502 lb)

• Price in first year of sale
• 740.00 DM

• Source of data
• Kat.d.Rundf.GrossH.1951/52

• Author
• Model page created by Bernd P. Kieck. See "Data change" for further contributors.

• Other Models

• Here you find 298 models, 282 with images and 137 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel