• Country
• United States of America (USA)

• Manufacturer / Brand
• Heathkit (Brand), Heath Co.; Benton Harbor (MI)

• Year
• 1956 ??

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 161382

• • alternative name: Heath Company

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

• Number of Tubes
• 3

• Valves / Tubes
• 12AX7 6BQ7A 6BH6

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• from Radiomuseum.org
• Model: D. C. Amplifier ES-201 - Heathkit Brand, Heath Co.;

• Shape
• Chassis only or for «building in»

• Notes
• Operational amplifier module for ES-400 series analog computers. 50 k open loop gain, ±100 V at 10 mA linear output; phase shift less than 1 degree at 1200 Hz. 5 W quiescent power.

• Price in first year of sale
• 15.00 $

• Source of data
• -- Original prospect or advert

• Literature/Schematics (1)
• -- Schematic

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

• Other Models

• Here you find 714 models, 698 with images and 505 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)