• Year
  • 1946–1948
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 18702

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

 Technical Specifications

  • Number of Tubes
  • 15
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz
  • Wave bands
  • Broadcast, more than 2 SW bands plus FM or UHF.
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / 105-125 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 8 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: SX-42 - Hallicrafters, The; Chicago,
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 20 x 10.2 x 16 inch / 508 x 259 x 406 mm
  • Notes
    • Coverage in MHz:
      • 0.540-1.62
      • 1.62-5, 5-15
      • 15-30
      • 27-55
      • 55-110
    • Xtal-IF-Filter
    • DC Operation also by a 6 Volts Storage Battery and "B" Batteries or Vibrapack

    Price $250-$275, IF's 455 &10.700 kHz for FM, Pull-push LF stage 8 Watts; 27-110 MHz FM. Source -> Konrad Birkner.

    During production, the circuit was revised several times by the manufacturer and changed accordingly. Therefore, individual copies can differ from each other. Several circuit diagram revisions have been published by the manufacturer. In many devices, the manufacturer's circuit changes were subsequently carried out more or less completely.

     

  • Net weight (2.2 lb = 1 kg)
  • 23.6 kg / 51 lb 15.7 oz (51.982 lb)
  • Price in first year of sale
  • 275.00 $
  • External source of data
  • E. Erb 3-907007-36-0
  • Circuit diagram reference
  • Die «Thali Schemasammlung» führt das Modell.

 Collections | Museums | Literature

Collections

The model SX-42 is part of the collections of the following members.

 Forum

583718
Forum contributions about this model: Hallicrafters, The;: SX-42

Threads: 1 | Posts: 1

I am restoring a 1947 Hallicrafters SX 42. I had been searching for the power transformer winding resistances with no results.  The receiver is functional and the transformer is working fine. I am posting what I measured for resistances from this known working unit. All tubes and lamps were removed for these measurements.

Primary (120v):  3 Ω

5 volt secondary:  0.1 Ω

6.3 volt secondary:  0.2 ohms

High voltage to Center Tap #1  54 Ω

High Voltage to Center Tap #2: 58 Ω

Wayne Rosberg, 18.Dec.12

Weitere Posts (1) zu diesem Thema.