• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Craftsmen Inc., The; Chicago (IL)

• Year
• 1951/1952

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 133493

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

• Number of Tubes
• 5

• Valves / Tubes
• 6SN7GTA 6SN7GTA KT66 KT66 5V4G

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

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

• Power out
• 10 W (unknown quality)

• Material
• Metal case, TUBES VISIBLE

• from Radiomuseum.org
• Model: 500 10 Watt Audio Amplifier - Radio Craftsmen Inc., The;

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• The Radio Craftsmen model 500 (number plate only 500 !) is an AC operated audio amplifier for custom installations with one (mono) input (470 k). For optimum operation, the output tubes KT66 should be a matched pair. The line transformer has 3 positions for line voltage.
  
  Model 500 is the first model of this line which includes 500, 500A, C550 and C550A. Other names like C500, RC500, C500A, RC500A or RC550A are wrong - but we have to list since so many persons look up under these wrong names. SAMS Photofact is distinguishing between model 500 and model 500A - but Radio Craftsmen made on both a number plate with only "500" as model name. Distinctive is the parts line-up on the plate. Therefore have a closed look to our SAMS reference picture when deciding which model it is.
  
  SAMS Photofact shows models 500 and 500A. As we show in the pictures there are offered as C500 by oaisie at eBay but the name plate shows clearly 500 only.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 4-52, set 164, folder 8)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 50 models, 44 with images and 29 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Craftsmen Inc., The; Chicago (IL)