• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1940/1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 26942

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

• Number of Tubes
• 4

• Valves / Tubes
• KCH1 KF4 KB2 KL5

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz; 2 AF stage(s); Reflex

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 2 & 144 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 631B - Philips; Eindhoven tubes

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

• Dimensions (WHD)
• 500 x 275 x 200 mm / 19.7 x 10.8 x 7.9 inch

• Notes
• Reflex-Superhet

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

• Price in first year of sale
• 118.00 Hfl

• Source of data
• -- Original-techn. papers.

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman

• Author
• Model page created by Iven Müller. See "Data change" for further contributors.

• Other Models

• Here you find 5274 models, 4420 with images and 3459 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt