• Country
• United States of America (USA)

• Manufacturer / Brand
• Clark Radio Equipment Co.; Chicago

• Year
• 1946/1947

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 155691

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

• Number of Tubes
• 6

• Valves / Tubes
• 7F7 7F7 7F7 6L6GA 6L6GA 5U4G

• Main principle
• Audio-Amplification; 3 AF stage(s)

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

• from Radiomuseum.org
• Model: PA-20 - Clark Radio Equipment Co.;

• Notes
• The Clark model PA20 is an AC Operated 3-Channel Amplifier.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date: Feb 1947, Set 13, Folder 473-12)

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

• Other Models

• Here you find 5 models, 5 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Clark Radio Equipment Co.; Chicago