• Country
• United States of America (USA)

• Manufacturer / Brand
• Electro-Voice Inc.; USA

• Year
• 1956 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 123260

• • Brand: Buchanan

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

• Number of Tubes
• 8

• Valves / Tubes
• 12AX7 12AX7 12AX7 12BH7 6V6GT 6V6GT 5Y3GT 5Y3GT

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Material
• Metal case, TUBES VISIBLE

• from Radiomuseum.org
• Model: A20C Circlotron Amplifier - Electro-Voice Inc.; USA

• Notes

• 20W audio amplifier using the patented Circlotron (PPP) out stage. Frequency response 20 to 20000Hz within 1dB.

• Price in first year of sale
• 183.00 $

• Literature/Schematics (1)
• The Radio-Electronic Master, 1956

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 124 models, 115 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electro-Voice Inc.; USA