• Year
  • 1937/1938 ?
  • Category
  • Commercial Receiver (may include amateur bands)
  • Radiomuseum.org ID
  • 113113

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

 Technical Specifications

  • Number of Tubes
  • 16
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz; 3 AF stage(s)
  • Wave bands
  • Broadcast, Long Wave and more than two Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 3 taps: 105; 115; 125 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet. / Ø 8 inch = 20.3 cm
  • Power out
  • 10 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Super Pro SPR-110LX - Hammarlund Mfg. Co. Inc.; New
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 10.5 x 14.2 inch / 483 x 267 x 361 mm
  • Notes
  • The Super Pro SP-110L series is similar to the SP-110, with one or two low frequency bands replacing one or two broadcast or sw bands. Typical frequency coverage was 100-200 kHz, 200-400 kHz, 2.5-5.0 MHz, 5-10 MHz, 10-20 MHz, but other band choices were offered, such as 150-300 kHz, 540-1160 kHz, 1160-2500 kHz, 2.5-5.0 MHz, 5.0-20 MHz.

    Two RF amplifiers, 465 kHz IF with continuously variable bandwidth. An optional crystal filter was offered (X suffix), as well as the rack mounting version (SPR-100 Series).

    The receiver was delivered complete with 8" external speaker chassis and separate power supply. 

    Please note the additional Information at the page of SP-100 Series Overview.

    In addition to the rack model a desktop cabinet model SP-110LX was manufactured.

  • Source of data
  • - - Manufacturers Literature
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

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