m59's Page

“50Watt Plexi Circuit”

Based on the Marshall 1987 Circuit



The design:

  • A two channel preamp
  • 1987 Preamp
  • AB1 Push-pull fixed bias, using 2 6ca7’s
  • Switch able Solid State Rectifier with a B+ 430 volts and Tube Rectifier with a B+ 390volts
  • Tubes: (3)12ax7, (2)6ca7, (1)5U4GB
  • Easy laid out Turret board.



            Up and running.

             Need to set up rectifier switch on also adjust bias



Coming soon


Audio Clips:

            Coming soon


Click here to see Pic Page


Copyright 2000 please do not repost on other web sites without permission. Feel free to link to this page. I just ask that I be notified.

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