52L1A Ch= HS-357

Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

Data
Forum
Pictures
Collections

  • Year
  • 1953 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 88422

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / AC/DC 117 V / 2 x 1.5 (3V in series) & 67.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: 52L1A Ch= HS-357 - Motorola Inc. ex Galvin Mfg.Co
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes

  • There are six models in this series. The later "A" models added a "B" Battery Saver slide switch, located in the upper right corner of the speaker grill.  The two slide switch positions are: left (DISTANCE-HI), and right (LOCAL-LO).  The DISTANCE-HI position increased the "B" battery drain and improved reception for long distance broadcasts.  The original model "B" battery drain was fixed at the later "A" model DISTANCE-HI drain level.

    Model Chassis Color Battery Saver Switch
    52L1 HS-327 Green NO
    52L2 HS-327 Maroon NO
    52L3 HS-327 Gray NO
    52L1A HS-357 Green YES
    52L2A HS-357 Maroon YES
    52L3A HS-357 Gray YES

     

 Collections | Museums | Literature

 Forum