1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Boss Tremolo TR2 (little problem!)

Discussion in 'Repairing Electronics' started by jjj, Dec 17, 2008.

  1. jjj

    jjj New Member

    Joined:
    Oct 11, 2004
    Messages:
    17
    Likes:
    0
    Now, when I press the tremolo effect pedal, it goes on; than I have to press the pedal again to turn it off.
    I want that it only triggers the tremolo effect for as long as I press down the pedal.
    http://img123.imageshack.us/img123/6985/tr2vj0.png
     
    Last edited: Dec 17, 2008
  2. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,580
    Likes:
    950
    Location:
    Canada, of course!
    Maybe its "Effect On/Off" switch is in the pedal. Separate them.
     
  3. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,328
    Likes:
    653
    Location:
    Derbyshire, UK
    ONLINE
    The lower right two transistors are a bistable, this is what latches and unlatches.

    As it switches two different FET's you would need to remove the bistable and replace it by a single transistor inverter, to provide the different signals.
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. jjj

    jjj New Member

    Joined:
    Oct 11, 2004
    Messages:
    17
    Likes:
    0

    Thanks for the good advice. :)
     

Share This Page