• Country
• United States of America (USA)

• Manufacturer / Brand
• Hudson Motor Car Co.

• Year
• 1939 ?

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

• Radiomuseum.org ID
• 44766

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

• Number of Tubes
• 7

• Valves / Tubes
• 6K7 6A8 6K7 6H6 6J5 6V6 6V6

• Main principle
• Superhet with RF-stage; ZF/IF 260 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) / 6 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Power out
• 6 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: DB-38 - Hudson Motor Car Co.

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 245 x 380 x 355 mm / 9.6 x 15 x 14 inch

• Notes
• Dimensions are over all. Main unit measures 210 x 230 x 165 mm. There is no rectifier tube. The vibrator is a synchronous one. The output stage is a balance, using two tubes 6V6. Voice coil impedance of loudspeaker is 3 Ohms.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 10 = 1939 and before

• Other Models

• Here you find 14 models, 1 with images and 14 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hudson Motor Car Co.