47X (47, 47DC, 47E) Late

Philco, Philadelphia Stg. Batt. Co.; USA

  • Year
  • 1933/1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 138879

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 260 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Direct Current supply (DC) / 115 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 47X [Late] - Philco, Philadelphia Stg. Batt
  • Shape
  • Console with any shape - in general
  • Notes
  • The Philco model 47 series uses a single-band 8-tube chassis designed for DC power.

    The standard 47 chassis is for 115 VDC power, while the 47E (Export) chassis is for 230 VDC and uses a ballast tube. Code 121 chassis is for a single speaker (and type 4 ballast in export version); code 221 is for dual speakers (and a type 5 ballast in export version).

    There were seven distinct models with different cabinet styles. Model 47B (1932-34) is a cathedral with single speaker. The cathedral cabinet, which was used on many other models in this time period, has a spade-shaped speaker opening and a recessed panel.

    Model 47D is a single speaker highboy with doors; the early version (1932-33) has a full-box bracing system connecting its six legs. The late version (1933-34) has multiple changes in the cabinet, most notably a simpler leg bracing system with no bar between the front two legs.

    47H is a single speaker highboy without doors. The early version (1932-33) has an ornately embellished, slightly arched speaker opening and full-box bracing of its six legs. The late version (1933-34) has a shield-shaped speaker opening and no bracing bar between its front two legs.

    Model 47X is a floor-type console with inclined sounding board and dual speakers. On the early version (1932-33), the inclined sounding board is nearly the full width of the cabinet, and the control panel is arched. On the late version (1933-34), the sounding board is narrower, and the control panel is rectangular.
  • Price in first year of sale
  • 100.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before
  • Author
  • Model page created by Thomas Albrecht. See "Data change" for further contributors.

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