• Country
• United States of America (USA)

• Manufacturer / Brand
• General Radio Company; Cambridge (MA)

• Year
• 1935 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 223344

• • alternative name: GenRad

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Oxide Rectifier 492A - General Radio Company;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 3.75 x 1.625 x 1.5 inch / 95 x 41 x 38 mm

• Notes
• 4 V, 15 mA.

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)