• Year
  • 1933 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 221441

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 262 kHz; 2 AF stage(s)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 125 or 220; 250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 74-AW [2A5 output ] - Patterson Radio Co. / Electric
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 13.5 x 18 x 10.5 inch / 343 x 457 x 267 mm
  • Notes
  • Covers 575 to 15 meters in 4 bands.  Shortwave bands are labeled in meters on the bandswitch, but shown on the dial only as a 0-100 logging scale.

    Band Label Frequency
    BC Broadcast 550 - 1500 kHz
    SW1 75-200 1.5 - 4 MHz
    SW2 30-75 4 - 10 MHz
    SW3 15-33 9 - 20 MHz

     

    There is also a version using a 59 output tube (7 pins).

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The model 74-AW is part of the collections of the following members.

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