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Saturday, 17 June 2017

Tubeworks Real Tube 903

JohnK had made a layout for the 903 awhile ago, and since I did a layout for the 901 i thought I'd see if I could make a smaller layout for the 903 to make it easier to put this in a 1590BB with plenty of room. I took his switch wiring to make it true bypass, and removed the additional LED to tell you that it's got power, which I feel is unnecessary. Schematic can be found on Revolutiondeux.




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7 comments:

  1. Will Kenworthy26 June 2017 at 09:37

    Hi Zach,
    Thank you very much for doing this layout.
    This is one FX pedal I've always wanted to try out. Soon as I get some time (??) I will build it and see how it goes.
    I have to believe there are others interested as well.

    Thank you again, Zach.
    Will

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  2. Zach5 July 2017 at 05:20

    went back over the schematic due to some errors brought up. made the corrections and updated the layout.

    ReplyDelete
  3. Zach13 July 2017 at 20:55

    the power section has been updated to give the correct +12V/-12V.

    ReplyDelete
  4. James O'Donnell11 September 2017 at 04:49

    Isn't this the exact same layout as the Real Tube 901? Or am I missing something here, lol.

    ReplyDelete
  5. Unknown19 October 2017 at 10:17

    Just wondering, pin 4 and 5 are both heaters on a 12ax7. they are also in connection to pin 9 center heater-tap.

    So if pin 4 is connected to 12v/A+ and pin 5 to ground...wouldn't that short out the voltage on the pedal. Making it not able to work?

    ReplyDelete
  6. Unknown19 October 2017 at 10:27

    Nevermind that ^^^^^^

    I don't know anything of tubes and just saw that heaters always need to be connected to ground...my bad :).

    ReplyDelete
  7. infoableinter@gmail..com11 September 2018 at 01:49

    Heater very important. Heater

    ReplyDelete