• Country
• United States of America (USA)

• Manufacturer / Brand
• Herald Electronics, Co.; Chicago, IL

• Year
• 1955 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 350511

• Number of Tubes
• 1

• Valves / Tubes
• 6SC7

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 105-125 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Preamplifier AM-143 - Herald Electronics, Co.;

• Shape
• Chassis only or for «building in»

• Notes

• Phono / Tape preamp, mono.

  Similar to Calrad PRE.

  Made in Japan

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

• Other Models

• Here you find 3 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Herald Electronics, Co.; Chicago, IL