655RX

Philco, Philadelphia Stg. Batt. Co.; USA

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  • Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 132050

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 460 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 10 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 655RX - Philco, Philadelphia Stg. Batt
  • Shape
  • Console: Chairside Radio.
  • Notes
  • The Philco 655 is a Superheterodyne chassis with preselector RF amplifier and push-pull triode output of 10 watts, introduced in January 1936 with new models. It is a revised chassis 650 with other wave bands (without long wave). It has the 3 wave bands: short wave, Police/Aircraft/Amateur and "Standard" (broadcast). Wave bands are "normal broadcast" plus 1.75 to 5.8 and 5.75 to 18 mc.

    There are the following models: 655B, 655H, 655MX, 655PX, 655RX and 655X. For the Baby Grands the speaker is model K17 and for the "furniture models" speaker H13. For repairs please read first Rider's volume 8 changes 8-2 because there were alterations and there are errors in the schematics - for instance the tube layout shows a tube 85 instead 75 as second detector but in the schematic itself it is correct a 75. All 655 series models use a shadow meter as tuning indicator.
  • Price in first year of sale
  • 150.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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