2208665

Information

• Patent Grant
• 2208665

• References
• Source

• Patent Number

  2,208,665

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1940
  84 years ago

• CPC

  • H03F1/36 - in discharge-tube amplifiers
  • H03G7/04 - incorporating negative feedback

• US Classifications

  • 330 - Amplifiers