• Country
• United States of America (USA)

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

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 48809

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

• Number of Tubes
• 4

• Valves / Tubes
• 6D8G 6S7G 6T7G or 6Q7G 6G6G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 inch = 14 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 496BT-1 - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 15.25 x 9.75 x 8.25 inch / 387 x 248 x 210 mm

• Notes

• Synchronous Vibrator for +B. Tuning Range 538 to 1750; 5600 to 18,000 kHz (kc).

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 14 = 1944 = before 1943

• Literature/Schematics (2)
• Machine Age to Jet Age II (page 202.)

• Literature/Schematics (3)
• Motorola Folder H-101A for 1940.

• 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)