• Year
  • 1932
  • Category
  • Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
  • Radiomuseum.org ID
  • 50951

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Superheterodyne (common); ZF/IF 1000 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 4C Shortwave Converter - Philco, Philadelphia Stg. Batt
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes
  • Converter Difference between model 4 and 4C not certain; difference may be that 4C is designed for 25-60 Hz power, while 4 is for 50-60 Hz. Common schematic for 4 and 4C shows separate components depending on AC line frequency.
  • Price in first year of sale
  • 39.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
  • Literature/Schematics (1)
  • Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data

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