• Country
• Netherlands

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

• Year
• 1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 123177

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

• Number of Tubes
• 3

• Valves / Tubes
• B2099 B2038 B2043 1926 or 1927 or 1928

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Direct Current supply (DC) / 110-130; 130-200; 200-250 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 17 cm = 6.7 inch

• Material
• Special material, described in the notes.

• from Radiomuseum.org
• Model: 938C - Philips; Eindhoven tubes

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

• Dimensions (WHD)
• 320 x 350 x 220 mm / 12.6 x 13.8 x 8.7 inch

• Notes
• Reaction coils with fixed position; feedback regulated by C13.
  Grid Detection done by first tube B2099.
  LW, BC and SW are divided in 6 ranges:
  • I. 15-33 m.
  • II. 32-90 m.
  • III. 85-200 m.
  • IV. 200-400 m.
  • V. 400-950 m.
  • VI. 950-2000 m.
  Housing in Arbolite, front panel in Philite (Bakelite).
   
  The type of resistance tube is depending on the mains voltage:
  • type 1926: 110-130 Volt.
  • type 1927: 130-200 Volt.
  • type 1928: 200-250 Volt.

• Net weight (2.2 lb = 1 kg)
• 9.5 kg / 20 lb 14.8 oz (20.925 lb)

• Price in first year of sale
• 1,250.00 FF

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Jean-Louis HEYD. See "Data change" for further contributors.

• Other Models

• Here you find 5270 models, 4414 with images and 3455 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt