• Country
• Netherlands

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

• Year
• 1956

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 292980

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

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

• Power out
• 6 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: AD 2690 - Philips; Eindhoven tubes

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 234 x 84 x 161 mm / 9.2 x 3.3 x 6.3 inch

• Notes

• Technical Specification:

  Power handling capacity: 6 Watts
  Flux density: 8,500 Gauss
  Total magnetic Flux: 15,200 Maxwell
  Voice coil impedance at 1,000 c/s: 5 Ω
  Weight: 375 grams
  Magnet weight: 42 grams

  ---

  00 and M version

  Efficiency at 400 c/s: 2,5%
  Resonance Frequency: 80 c/s

  ---

  X Version

  Efficiency at 400 c/s: 3 %
  Resonance frequency: 100 c/s

• Net weight (2.2 lb = 1 kg)
• 0.375 kg / 0 lb 13.2 oz (0.826 lb)

• Mentioned in
• NL: Philips Loudspeakers 38617/E- 11/56

• Author
• Model page created by Carlos A. Pieroni-García. See "Data change" for further contributors.

• Other Models

• Here you find 5250 models, 4394 with images and 3450 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt