• Year
  • 1934/1935
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 133123

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 460 kHz
  • Wave bands
  • Broadcast (MW) and Tropical/Marine/Police Band(s) = 150-200m.
  • Power type and voltage
  • Storage and/or dry batteries / 135, 67.5, 2, -3, & -7 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 38B [Version 3] - Philco, Philadelphia Stg. Batt
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Notes
  • The model 38 series are battery operated 2-band sets with a variety of cabinet styles over several years.

    There were five versions of the cathedral 38B: Version 1 (1933) has the classic spade-shaped speaker opening used on many Philco cathedral cabinets. Version 2 (1934) has an oval opening with three vertical bars and downward curving additional bars at the bottom. Version 3 (1934-35) has an oval opening with stepped features at the bottom. Version 4 (1935) is similar to version 3, but has a larger escutcheon opening and new dial design. Version 5 (1936) has a cabinet with a continuous arch shape starting from the base and multiple vertical bars in the speaker opening.

    The model 38L lowboy has two versions: an early version (1933-34) with four narrow vertical bars at the edges of the speaker opening, along with other embellishment, and a late version (1934-35) with a single vertical bar through the center of the speaker opening, along with other embellishment.

    There was also a highboy (1933) and a floor-type console (1935-36).

    The chassis had an early version (used for 1933 and early 1934) with a type 15 mixer tube and a later version with type 1A6 mixer (used from mid 1934 onward). Chassis marked as model 38 have no ballast tube and are designed for use with a 2 volt storage battery for filaments. Those marked 38A have a ballast tube (type 6 early; type 1A1 late) and are designed for a dry battery (presumably 3 volts?) for the filament supply.

    Two Philco schematics are available: code 121 with type 15 mixer (also found in Rider vol 4) and code 123 with 1A6 mixer.
  • Price in first year of sale
  • 50.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Literature/Schematics (1)
  • Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data

 Collections | Museums | Literature


The model 38B (38, 38A) is part of the collections of the following members.