• Country
• United States of America (USA)

• Manufacturer / Brand
• Sentinel Radio Corp., Evanston, Illinois

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57641

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 6D6 75 41 80

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 52A [115V mains] - Sentinel Radio Corp., Evanston

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 17.5 x 9.5 x 8.5 inch / 445 x 241 x 216 mm

• Notes

• Three bands with tuning ranges 540 to 1720 kc, 1.7 to 5.6 and 5.8 to 18.1 Mc. AVC, variable tone control. 6 inch speaker (schematic indicates 6 or 8 inch speaker). Selected walnut veneers.

  Mains 115 V, 60 cycles.

  Specified weight is shipping weight.

• Net weight (2.2 lb = 1 kg)
• 25 lb 0 oz (25 lb) / 11.350 kg

• Price in first year of sale
• 29.95 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Other Models

• Here you find 710 models, 350 with images and 602 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois