37-33F Early

Philco, Philadelphia Stg. Batt. Co.; USA

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  • Year
  • 1936/1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 137765

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 135, 90, 2, -3, & -9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 37-33F [Early] - Philco, Philadelphia Stg. Batt
  • Shape
  • Console with any shape - in general
  • Notes
  • The Philco model 37-33 series uses a 5-tube battery-powered single band chassis. For the filament supply, either a 2 volt storage battery can be used, or a dry battery (presumably 3 volt) with a ballast tube to reduce the voltage to 2 volts. According to the information in Rider, the ballast tube inserts into a socket on the dry A battery itself.

    There are multiple models in the series with different cabinet styles. Model 37-33B is a cathedral with an arch-shaped profile and four vertical bars through the speaker grill. There may also have been a late version with a scalloped speaker opening (documented in Ramirez 1993 edition, but not shown on Ramirez website in 2009).

    Model 37-33F is a floor-type console; the early version has a tulip pattern in the speaker opening, and the late version has a large rectangular speaker grill with three vertical bars.
  • Price in first year of sale
  • 50.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before
  • Author
  • Model page created by Thomas Albrecht. See "Data change" for further contributors.

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