S-40U

Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

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  • Year
  • 1946–1949
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 279528

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: S-40U - Hallicrafters, The; Chicago,
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 470 x 229 x 279 mm / 18.5 x 9 x 11 inch
  • Notes

  • Hallicrafters S-40U 

    The following table lists some of the easy-to-identify differences of the S-40 versions.

    Additional circuit differences (resistors, capacitors, wiring) are not described here; refer to the schmatics for additional differences.  Note that the "U" model used a Universal power transformer (120/240 volts; 25-60 Hz) for export and it is unknown which S-40 versions had a "U" version.

    Refer to S-40 (Original) for the Guide to Identifying Hallicrafters S-40 Versions document.

    Other A/B versions include S-40A (Runs 1-2) and S-40B.

    S-40 Model Differences
    Model Tubes Rectifier
    Tube    		 Speaker
    Type    		 Speaker
    Socket/Plug    		 Audio
    Xfmr
    Location
    S-40 (Original) 9 80 FC Y TOP
    S-40 (1st Revision) 9 80 PM Y TOP
    S-40 (2nd Revision) 9 80 PM N
    (grommet)    		 TOP
    S-40U 9 80 ? ? TOP

    Coverage:

    0.550 - 1.7 MHz, 1.7 - 5.4 MHz, 5.3 - 16 MHz, 15.5 - 44 MHz.

    Cabinet design by Raymond Loewy.

    Included in New York's Museum of Modern Art collection.

  • Net weight (2.2 lb = 1 kg)
  • 12.9 kg / 28 lb 6.6 oz (28.414 lb)
  • Price in first year of sale
  • 79.50 USD
  • Literature/Schematics (1)
  • The Spectrum Monitor, June 2020, p 83-88, Adventures in Radio Restoration [S-40] by Rich Post KB8TAD

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