• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

5U4G schematic for 4x6SN7 Stereo Octal Akido Preamp.


2013-04-09 9:37 pm


2013-04-09 9:37 pm

Download a copy of above psu design software and have some fun, and read tutorial which shows how to use and design with. Attached shows the inrush current plot that you maybe interested to know. You can also sim it with Spice program. Once you have learn the skill it's all yours for free.


  • dhtrob_psu.pdf
    396 KB · Views: 23
  • Akido 6SN7 PSU-2.png
    Akido 6SN7 PSU-2.png
    521 KB · Views: 81
  • Akiko 6SN7 PSU-3.png
    Akiko 6SN7 PSU-3.png
    126.2 KB · Views: 77
  • 5u4gb rectifier-2.asc
    2.4 KB · Views: 18
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