• Country
• United States of America (USA)

• Manufacturer / Brand
• Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 48935

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

• Number of Tubes
• 5

• Valves / Tubes
• 12SA7 12SK7 12SQ7 50L6GT 35W4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 57X12 Pyramid Ch= HS-60 [ivory] - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 12.25 x 6.75 x 6.38 inch / 311 x 171 x 162 mm

• Notes

• The model 57X12 has a two-way dial, Jewel-type in-off indicator and a range of 535-1620 kc/s. It has an "Aero-Vane" loop antenna, no aerial or ground required. The cabinet is bakelite, painted in Ivory.

  Note: SAMS shows an erroneous picture caption of "56X12".

• Price in first year of sale
• 26.95 $

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 17 = 1948 and before

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 11-47, Set 28, Folder 4718-25)

• Literature/Schematics (2)
• Table Top Radios Vol. 1 Stein 98 (page 119.)

• Other Models

• Here you find 4508 models, 2955 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)