Cdi box circuit help needed

Discussion in 'General Electronics Chat' started by CDI, Jun 12, 2011.

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  1. CDI

    Thread Starter New Member

    Jun 12, 2011
    Hi i am building A cdi unit for Yamaha dt125. Circuit diagram is provided below and video link of someone who has build one the same as the diagram below i believe, becuase it looks similar :

    1.what diode is the D2?
    2. what alternative transistor can i use apart from 2p4M?

    Thanks I really would appreciate it for answers as i am desperate for cost effective solution rather than pay stupid price for cdi unit.
  2. #12


    Nov 30, 2010
    Ve-hickles are not allowed on this site, so I can't tell you that the diode is probably a 1N4007 and the "transistor is described in this datasheet.
  3. bertus


    Apr 5, 2008

    I am closing this thread as it violates AAC policy and/or safety issues.

    6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

    • Any kind of over-unity devices and systems
    • Automotive modifications
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    This comes from our Tos:
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    There will be enough sites where automotive questions can be discussed :
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