• Country
• United States of America (USA)

• Manufacturer / Brand
• Electronic Laboratories, Inc. (E/L); Indianapolis, IN

• Year
• 1933

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 38219

• • Brand: E/L

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

• Wave bands
• - without

• Power type and voltage
• Direct Current supply (DC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: DC Converter 339 - Electronic Laboratories, Inc.

• Notes
• Syncr. vibrator for +B; 10 Ohm resistance line cord.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 4 = ca. 1934 and before

• Other Models

• Here you find 29 models, 20 with images and 20 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electronic Laboratories, Inc. (E/L); Indianapolis, IN