• Year
  • 1948
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 65859

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 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / AC/DC 105-125 / 67.5 & 7.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Power out
  • 0.08 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: D3810 - Western Auto Supply Co.
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • There are three models that are versions of the Tele-Tone 156. The schematics are very similar with many of same part numbers (the D3810 adds AC to DC circuitry). The plastic cases are physically identical with the only differences being (1) an engraved name change from "TELE-TONE" to "TRUETONE", (2) a color change to the D3810 case, and (3) knob color changes. Tele-Tone may have been the "private label" manufacturer to Western Auto for these Truetone models.

    Brand Model Power supply
    Tele-Tone 156 Battery
    Truetone D3809 Battery
    Truetone D3810

    AC/DC or Battery

    Another difference of the D3810 from the others is that the "A" supply is 5 "D" cells in series (7.5 V) because the filaments are wired in series to accommodate the AC power supply option circuitry.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 18 = 1949 and before

 Collections | Museums | Literature

Collections

The model D3810 is part of the collections of the following members.

 Forum