- Country
- United States of America (USA)
- Manufacturer / Brand
- Automatic Radio Mfg. Co.; Boston (MA)
- Year
- 1959 ?
- Category
- Car Radio, perhaps also + sound player/recorder
- Radiomuseum.org ID
- 150878
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Number of Transistors
- Semiconductors
- DT-41
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- 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) / Ø 5.25 inch = 13.3 cm
- Material
- Metal case
- from Radiomuseum.org
- Model: N-639 - Automatic Radio Mfg. Co.;
- Shape
- Chassis only or for «building in»
- Notes
- Battery operated 4 tube 1 transistor custom built automobile AM receiver. Sams photofact set 493 folder 3 date 7-60 features the Automatic Radio models N-638, N-639 and NA-749 as the same schematic.
- Literature/Schematics (1)
- Photofact Folder, Howard W. SAMS (Set 493 folder 3 date 7-60)
- Author
- Model page created by Peter Hoddow. See "Data change" for further contributors.
- Other Models
-
Here you find 401 models, 163 with images and 321 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Automatic Radio Mfg. Co.; Boston (MA)