• Year
  • 1937/1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 137606

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

 Technical Specifications

  • Number of Tubes
  • 20
  • Main principle
  • Superhet with RF-stage; ZF/IF 470 kHz
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • 3 Loudspeakers / Ø 14 inch = 35.6 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 38-690XX 125 - Philco, Philadelphia Stg. Batt
  • Shape
  • Console with any shape - in general
  • Dimensions (WHD)
  • 778 x 1134 x 408 mm / 30.6 x 44.6 x 16.1 inch
  • Notes
  • Model 38-690 is Philco's top-of-the-line radio for 1938, and one of their most elaborate designs ever. This model features five bands (BC + four SW), automatic tuning, magnetic tuning (automatic frequency control to automatically center tuning and prevent drift), adjustable IF bandwidth to trade off fidelity vs selectivity, two tweeters, one woofer, and acoustic clarifiers (passive radiators to eliminate cabinet resonance).
  • Net weight (2.2 lb = 1 kg)
  • 73.8 kg / 162 lb 8.9 oz (162.555 lb)
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before
  • Author
  • Model page created by Thomas Albrecht. See "Data change" for further contributors.

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The model 38-690XX is part of the collections of the following members.

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