R-28F Ch= R-28-P Duncan Phyfe Table, 2 bands

RCA (RCA Victor Co. Inc.); New York (NY)

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  • Year
  • 1933
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 160245
    • alternative name: RCA Manufacturing || Victor Talking Machine

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)
  • Power out
  • 1.75 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: R-28F Ch= R-28-P [Duncan Phyfe Table, 2 bands] - RCA RCA Victor Co. Inc.; New
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes

  • Chassis R-28-P in a Duncan Phyfe table, advertised as Model R-28F.

    The R-28-P has a RF stage and 3 gang tuning condenser but only one IF bandfilter! The original R-28 did not have the 1400-2800 kHz Police Band and is somewhat less common. The P-model indicates "Police".

  • Price in first year of sale
  • 44.50 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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The model R-28F is part of the collections of the following members.

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