• Country
• Netherlands

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

• Year
• 1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 93884

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH3 EF9 EBC3 CL4 CY1 C1

• Main principle
• Superheterodyne (common); ZF/IF 454 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• AC/DC-set / 110-130; 200-220 Volt

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 493U - Philips; Eindhoven tubes

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

• Dimensions (WHD)
• 350 x 230 x 170 mm / 13.8 x 9.1 x 6.7 inch

• Notes
• 3 Band reception:
  • BC: 160 - 570 m.
  • SW1: 13,5 - 45 m.
  • SW2: 45 - 160 m.
  Tuning scale light bulbs type: 8092D (10V, 200mA).
  Loudspeaker Philips type 9648-06 or 9676. No connectors for external loudspeaker or pick-up. 
   
  This model is comparable with Siera S88U.

  There is also a variant 493U-06 with different wavelengths.

  There is contradictory data present in the schematics concerning the mains voltage. 2 voltage ranges are mentioned but no selector is found in the schematic nor does the current regulator tube serve as selector as is done with many of such models.

  Attention: The mains is connected to the chassis.

• Net weight (2.2 lb = 1 kg)
• 5.9 kg / 12 lb 15.9 oz (12.996 lb)

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

• Author
• Model page created by Hugo Sneyers. See "Data change" for further contributors.

• Other Models

• Here you find 5233 models, 4365 with images and 3445 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt