B8X72A

Philips; Eindhoven (tubes international!); Miniwatt

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  • Year
  • 1957/1958
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 29792

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superheterodyne (common); ZF/IF 452/10700 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)     11 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 127; 145; 165; 220; 245 Volt
  • Loudspeaker
  • 3 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: B8X72A - Philips; Eindhoven tubes
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 740 x 412 x 313 mm / 29.1 x 16.2 x 12.3 inch
  • Notes
  • AM radio with built-in ferroceptor:
    • LW: 150 - 340 kHz.
    • BC: 519 - 1610 kHz.
    • SW: 5,9 - 18,2 MHz.
    FM mono radio with dipole antenna input: 87,5 - 100 MHz.
     
    Amplifier: SRPP1 variant in 800 Ω without transformer. Despite the "Bi-Ampli" logo on the scale, this radio has only 1 amplifier with 3 dedicated loudspeakers:
    • 9710A (800Ω, 19 cm, bass, 1st order low pass filter).
    • AD2390BZ (400Ω, 7 cm, horn loaded, mid frequencies, bandfilter with 2 capacitors).
    • AD3500BM (400Ω, 10 cm, treble, 1st order high pass filter).
    Light bulbs: 8x 8024N (6.3V / 300mA, bajonet, from which 1 red and 1 green).
     
    This radio has:
    • Tone controls (bass, treble).
    • The "Stabilotone" screen is illuminated in green for "Dolce", red for "Forte" and mixed color for "Mezzoforte"; these are volume presets, adjustable at the backside.
    • Equilizer presets (Fidelita, Parola).
    • Output overload indicator with neon bulb. 
    1shunt regulated push-pull amplifier
  • Net weight (2.2 lb = 1 kg)
  • 20 kg / 44 lb 0.8 oz (44.053 lb)
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Author
  • Model page created by Iven Müller. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

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

Museums

The model can be seen in the following museums.

 Forum

Forum contributions about this model: Philips; Eindhoven: B8X72A

Threads: 1 | Posts: 6

To the administrator. 

At your convenience, please check two of the document pages. The first is, the schematic. The second page is of the top of chassis part locations.  

 There seems to be a second image on the PDF documents.  This image obscures (hides) the main image of that page.  
 
I would have fixed and uploaded a revision if I had PDF editing software. 
Thanks,
Paul

Paul E. Pinyot † 2013, 28.Jun.10

Weitere Posts (6) zu diesem Thema.