Long tailed pair Tune Preamplifiers

1 Credits


How to design a Long Tailed Pair configuration with two identical common cathode triodes, in this case two 12AX7. The focus of design is on the CMRR (Common-Mode Rejection Ratio) and the PSRR (Power Supply Rejection Ratio) that has a very high value in this configuration, estimated at about 60dB.

  • For-Credits
  • Simple
  • 11-20
  • PSpice
  • 9.2+
  • No
  • Ia Va characteristic of 12AX7 12AX7 characteristic anodic waveforms


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