• Year
  • 1949
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 198766

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 452 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and more than two Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 125; 145; 200; 220; 245 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 19 cm = 7.5 inch
  • Power out
  • 4.5 W (unknown quality)
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: BX490A - Philips Belgium Belgien
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 460 x 300 x 240 mm / 18.1 x 11.8 x 9.4 inch
  • Notes
  • Philips BX490;
    Apparecchio con mobile in bachelite e con circuitazione supereterodina in grado di ricevere le onde lunghe, medie e corte.
    1) OL: 715-2000 m (420-150 kHz);
    2) OM: 185-580 m (1600-520 kHz);
    3) OC 1: 32-50,5 m;
    4) OC 2: 21,5-32 m;
    5) OC 3: 17-26 m;
    6) OC 4: 13,5-20 m.
    Da sinistra verso destra troviamo il controllo toni, estraendo il quale si attiva l’ingresso fono, segue il controllo volume con l’interruttore di rete, la manopola di sintonia dotata di volano e infine il commutatore per il cambio gamme d’onda a sei posizioni. L’ascolto avviene tramite due altoparlanti disposti coassialmente: uno per le frequenze alte e uno per frequenze basse. Abbastanza complessa la meccanica della regolazione di sintonia ove il condensatore variabile e l’indicatore sulla scala parlante sono mossi da un sistema separato di funicelle che viene però azionato contemporaneamente dall’apposita manopola. E’ curioso il fatto che questo ricevitore impiega 6 valvole: (ECH 21, EBL 21, 2 x EAF 42, EM34 e AZ1) appartenenti a 4 serie diverse (Tipo P o Vaschetta o Octal europeo; Octal, Locktal e Rimlock). Posteriormente al mobile si trova la presa antenna, l’ingresso fono e l’uscita per un altoparlante supplementare.


    This radio can accomodate EAF41 as well as EAF42: see wiring diagram.

    AM radio for external antenna:
    • LW: 150 - 420 kHz.
    • BC: 517 - 1620 kHz.
    • SW1: 5,94 - 9,38 MHz.
    • SW2: 9,37 - 13,95 MHz.
    • SW3: 11,54 - 17,65 MHz.
    • SW4: 17,65 - 26,8 MHz.
    Loudspeaker: 9696-05 (5Ω, with soundwave diffuser).
    Dial lamp: 2x 8045D (E10, 6.3V/320mA).
  • Net weight (2.2 lb = 1 kg)
  • 9.6 kg / 21 lb 2.3 oz (21.145 lb)
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Author
  • Model page created by Carlo La Perna. See "Data change" for further contributors.

 Collections | Museums | Literature

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The model is part of the collections of the following members.

 Forum

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Forum contributions about this model: Philips Belgium: BX490A

Threads: 1 | Posts: 3

I uploaded some images of the BX-490A and mistakenly placed them under the BE version of that model, not knowing that there were two distinct versions.  To the appropriate moderator, please re-locate my images to the NL version since the provenance of my set is definitely from NL.  Can anyone tell me the difference between the two models?.  Dank je wel, et Merci,  Rich KB8TAD

Rich Post, 26.May.21

Weitere Posts (3) zu diesem Thema.