• Country
• Netherlands

• Manufacturer / Brand
• Waldorp, N.V. Ned. Instrumentenfabriek, Den Haag

• Year
• 1940/1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 84271

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

• Number of Tubes
• 4

• Valves / Tubes
• DK21 DF21 DAC21 DL21

• Main principle
• Superheterodyne (common); ZF/IF 473 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Storage and/or dry batteries / 2; 120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21 cm = 8.3 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 120 [Rö. DK21] - Waldorp, N.V. Ned.

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 552 x 278 x 205 mm / 21.7 x 10.9 x 8.1 inch

• Notes
• Heizspanning umschaltbar 1,4V (direct) oder 2V (mit Serienwiderstand). Philips Lizenz, Modell ist identisch wie Philips 614B

• Price in first year of sale
• 120.00 Dfl

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman

• Author
• Model page created by Folkert Rothe. See "Data change" for further contributors.

• Other Models

• Here you find 140 models, 92 with images and 42 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Waldorp, N.V. Ned. Instrumentenfabriek, Den Haag