• Country
• Netherlands

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

• Year
• 1963–1968

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 193345

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

• Number of Tubes
• 12

• Valves / Tubes
• EF85 EF85 EF85 EF85 ECH81 ECH81 ECH81 E99F E99F E99F 5726 EL84 0A2

• Main principle
• Superhet, double/triple conversion; ZF/IF 2455/455 kHz

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 90; 110; 125: 145; 200; 225; 245 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 2.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Communications Receiver 8RO 501 /00 /50 /51 - Philips; Eindhoven tubes

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 527 x 327 x 448 mm / 20.7 x 12.9 x 17.6 inch

• Notes

• Wave bands:

  1. 225 - 540 kHz
  2. 470 - 1128 kHz
  3. 1,1 - 2,64 MHz
  4. 2,6 - 6,24 MHz
  5. 6,0 - 14,4 MHz
  6. 13,0 - 31,2 MHz

  Motorized tuning system with manual fine-tuning.

  19 inch 6U frontplate. Given dimensions above for original table top cabinet.

• Net weight (2.2 lb = 1 kg)
• 30 kg / 66 lb 1.3 oz (66.079 lb)

• Source of data
• - - Manufacturers Literature

• Mentioned in
• Shortwave Receivers - Past & Present (4th ed.) (Page 532)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Timo Rantasaari. See "Data change" for further contributors.

• Other Models

• Here you find 5257 models, 4401 with images and 3453 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt