Aladdin Big Four

Fansteel Products (Pfanstiehl, Pfansteihl, Balkite, Balkeit); Chicago

Data
Forum
Pictures
Collections

  • Year
  • 1925 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 246668
    • alternative name: Balkeit || First National
    • Brand: Overtone

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 6 & 45 & 90 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Aladdin Big Four - Fansteel Products Pfanstiehl,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 24.25 x 9.5 x 12.25 inch / 616 x 241 x 311 mm
  • Notes

  • RF Coils:

    The two green coils Pfanstiehl RF coils, labeled M-4. The term for these coils is “Basket or Diamond Weave Coils”.

    Audio Jacks
    for headphones or loudspeaker:

    LH Jack:  When used the filaments on RF, Detector and first audio tube will turn on.The theory is that there is enough volume from nearby stations to run either the headphones or the speaker and enough volume from the long-distance stations to run the headphones. This will conserve power as the second audio tube is not turned on.  

    RH Jack: This jack is used for listening to long distant stations. When plugged in, the 2nd audio is activated.

  • Net weight (2.2 lb = 1 kg)
  • 23 lb (23 lb 0 oz) / 10.442 kg
  • Author
  • Model page created by Bruce Morgenstern. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Aladdin Big Four is part of the collections of the following members.

 Forum