• Country
• United States of America (USA)

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

• Year
• 1962 ?

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 89901

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

• Number of Transistors
• 5

• Semiconductors
• 2SA72 2SA72 2SA72 MN53 SP485

• Main principle
• Superhet with RF-stage; ZF/IF 262.5 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 14 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: 520T - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Chassis only or for «building in»

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 23, 1963

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 4601 models, 2962 with images and 4100 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)