• Country
• United States of America (USA)

• Manufacturer / Brand
• United Motors Service (Delco)

• Year
• 1958–1960

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

• Radiomuseum.org ID
• 83958

• • 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
• 5

• Valves / Tubes
• 12DZ6 12AD6 12EA6 12DV8 12AL8

• Number of Transistors
• 1

• Semiconductors
• 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 Battery for all (e.g. for car radios and amateur radios) / 12 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Delco 3748611 Corvette - United Motors Service Delco

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 275 x 100 x 220 mm / 10.8 x 3.9 x 8.7 inch

• Notes

• The Delco Radio Model 3748611 is a battery operated, custom built AM automobile, auto signal seeking receiver with transistorized output for 1958 to 1960 Corvette automobiles. The signal seeking function is triggered by pushing the bar marked “WONDERBAR” on the front of the radio. The radio will then mechanically tune to the next station.

  The same circuit was used in the 1961 model (985003). However the 61 model had semicircular indents on the station select pushbuttons.

  When the Corvette was ordered this optional radio cost an additional;

  1958 - $144.40

  1959 - $149.80

  1960 – $137.75

• Price in first year of sale
• 144.40 USD

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

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 9-58, Set 412, Folder 5)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 393 Folder 13-S dated 358)

• Author
• Model page created by Egon Penker. 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)