37-641X Late

Philco, Philadelphia Stg. Batt. Co.; USA

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 147670

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 470 kHz
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • AC/DC-set / 115 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Power out
  • 1.4 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 37-641X [Late] - Philco, Philadelphia Stg. Batt
  • Shape
  • Console with any shape - in general
  • Notes
  • The Philco model 37-641 series uses a 7-tube 3-band chassis with shadow meter (tuning aid). The chassis is similar in design to the 37-640 series, but uses an AC-DC power supply and lower power output tubes. Band coverage is 530-1720 kHz (BC), 2.3-7.4 MHz (SW1), and 7.35-22 MHz (SW2).

    There are four specific models in the series with different cabinet styles. Model 37-641B (1936-37) is a tombstone. The early version (1936) of 37-641X is a console with an inclined sounding board and a slightly trapezoidal overall profile. The late version (1937) of 37-641X is a console with a rectangular profile and a U-shaped recessed inclined panel for both the speaker and control panel. Model 37-641MX (1936-37) is a console with a more modern design, having four vertical slots for the speaker opening.
  • Price in first year of sale
  • 90.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before
  • Author
  • Model page created by Thomas Albrecht. See "Data change" for further contributors.

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