K-52

General Electric Co. (GE); Bridgeport CT, Syracuse NY

Data
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  • Year
  • 1933 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 126156
    • Brand: Musaphonic

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Tropical/Marine/Police Band(s) = 150-200m.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: K-52 - General Electric Co. GE;
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 12 x 14.5 x 8.5 inch / 305 x 368 x 216 mm
  • Notes
  • The General Electric model K-52 has been made with the chassis R-28-P which is listed under RCA Victor. This chassis received more than a dozen different cabinets, from simple table models to consoles. There are two very similar schematics, one is for RCA Victor 110, 111 and 115 - see Beitman 1-179 and the other for the chassis R-28-P - see Beitman 1-169. Also Rider's brings as RCA R28 (3-4) and R28P (4-29). The power consumption is 70W; Range: BC 540-1500 kc; SW: 1400-2800 kc. The tube 58 is the RF amplifier, the 2A7 first detector/oscillator. There is no IF tube but a 3 circuit band filter, followed by the tube57 as second detector and power amplifier 2A5. Thus the receiver GE K-52 has only 5 tuned circuits pus a tickler coil (L6) for the IF.
  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 1, 1926-1938

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The model K-52 is part of the collections of the following members.

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The model K-52 can be seen in the following museums.

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