70A Baby Grand

Philco, Philadelphia Stg. Batt. Co.; USA

Data
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  • Year
  • 1931/1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 18813

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 260 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 70A Baby Grand - Philco, Philadelphia Stg. Batt
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 16.5 x 18 x 10 inch / 419 x 457 x 254 mm
  • Notes

  • Model 70 was available in a cathedral cabinet, a lowboy, and a highboy. The cathedral cabinet is the classic design used for models 21, 35, 46, 70, and 90, designed by Edward L. Combs. The cathedral radios are very popular and sought by collectors. Both mahogany and walnut versions were available for the model 70 cathedral cabinet. Model 70 is for 50-60 Hz power; model 70A is for 25-60 Hz power. There may have been a late version of model 70A using tubes 35 24 35 27 35 47 80. Nearly 300,000 Philco 70 radios were sold.

  • Price in first year of sale
  • 49.95 $
  • External source of data
  • E. Erb 3-907007-36-0
  • Circuit diagram reference
  • Die «Thali Schemasammlung» führt das Modell.
  • Literature/Schematics (3)
  • Philco Folder 2674.

 Collections | Museums | Literature

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The model 70A is part of the collections of the following members.

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