3539826

Information

• Patent Grant
• 3539826

• References
• Source

• Patent Number

  3,539,826

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1970
  54 years ago

• CPC

  • H03F1/34 - Negative-feedback-circuit arrangements with or without positive feedback
  • G05F1/613 - using semiconductor devices in parallel with the load as final control devices
  • G06G7/163 - using a variable impedance controlled by one of the input signals, variable amplification or transfer function
  • H03C1/36 - by means of semiconductor device having at least three electrodes
  • H03G1/0035 - using continuously variable impedance elements
  • H03L7/0812 - and where no voltage or current controlled oscillator is used
  • H04B3/148 - variable equalisers

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks