• Country
• United States of America (USA)

• Manufacturer / Brand
• United Motors Service (Delco)

• Year
• 1959

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

• Radiomuseum.org ID
• 70521

• • alternative name: Delco Radio Corp. (Appliance) || Delco-Remy Division, General Motors Corp. || United Motors Service Delco General Motors
  • Brand: Chieftain || Delco

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

• Number of Tubes
• 4

• Valves / Tubes
• 12DZ6 12AD6 12EK6 12DS7

• Number of Transistors
• 1

• Semiconductors
• DS-501

• Main principle
• Superheterodyne (common); ZF/IF 262 kHz

• 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) / 12 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: 987891 Chevrolet - United Motors Service Delco

• Shape
• Chassis only or for «building in»

• Notes
•   The United Motors Service (Delco) Model 987891 is a Battery operated 4 Tube AM Automobile Receiver with Transistorized Output for Chevrolet Automobiles.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 19, 1959

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 7-59, Set 448, Folder 6)

• Author
• Model page created by Hinrich Grensemann † 15.5.16. See "Data change" for further contributors.

• Other Models

• Here you find 585 models, 331 with images and 548 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from United Motors Service (Delco)