• Country
• Germany

• Manufacturer / Brand
• Hagenuk (N&K), Hanseatische App.bau-Ges., Neufeldt & Kuhnke, Nordmark

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 2288

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

• Number of Tubes
• 5

• Valves / Tubes
• AH1 AB2 AF7 AL1 AZ1

• Main principle
• TRF with diode detector; 1 Special; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Nordmark 237W - Hagenuk N&K, Hanseatische App.

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 555 x 365 x 255 mm / 21.9 x 14.4 x 10 inch

• Net weight (2.2 lb = 1 kg)
• 17.2 kg / 37 lb 14.2 oz (37.885 lb)

• Price in first year of sale
• 235.00 RM

• Source of data
• HandB.d.d.Rundfunk-Handels 1936/37 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Other Models

• Here you find 178 models, 143 with images and 70 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hagenuk (N&K), Hanseatische App.bau-Ges., Neufeldt & Kuhnke, Nordmark