• Country
• United States of America (USA)

• Manufacturer / Brand
• United Motors Service (Delco)

• Year
• 1958 ?

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

• Radiomuseum.org ID
• 83962

• • 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 Transistors
• 10

• Semiconductors
• 2N150 2N149 2N149 2N149 R-62 R-64 2N217 2N217 2N217 2N278

• Main principle
• Superhet with RF-stage; ZF/IF 262 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 12; 6 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: Delco 989131 Oldsmobile [Trans - Portable] - United Motors Service Delco

• Shape
• Chassis only or for «building in»

• Notes
• Main frame with power amp holds the detachable radio unit. The latter one has its own built in speaker and amplifier and can be used as a portable radio, e.g. taken along from the parking to the beach.
  Speaker 3" and 6" x 9" PM elliptical speaker when radio is in car.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 18, 1958

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 8-58, Set 410, Folder 12)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 396 Folder 16-S dated 4-58)

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

• Other Models

• Here you find 585 models, 332 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)