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DIY Ignition module to replace points & condenser

Discussion in 'General Electronics Discussion' started by debe, Oct 12, 2014.

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  1. debe

    debe

    253
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    Oct 15, 2011
    ATOM MOD red circ.jpg ATOM MOD.1.JPG ATOM MOD.2.JPG ATOM MOD.3.JPG ATOM MOD.4.JPG ATOM MOD.5.JPG ATOM MOD.6.JPG ATOM MOD.7.JPG ATOM MOD.8.JPG ATOM MOD.9.JPG ATOM MOD.10.JPG ATOM copy on VICTA.JPG This is a reverse engineered Atom ignition module for magneto type ignition systems. Manufacturing of these modules ceased some years ago. They are quite simple to build & use on small engines that use points & condencer, The points & condencer are removed or disconnected, & this module fited in there place. The following is the circuit & pics of assembly.
     
  2. debe

    debe

    253
    65
    Oct 15, 2011
    This is the original instructions for an Atom module. Atom INST.1.JPG Atom INST.2.JPG Atom INST.3.JPG
     
  3. debe

    debe

    253
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    Oct 15, 2011
    I started this project back in 2011 & took a long time to find a suitable transistor that would work reliably switching the coil. Eventualy found the 2SD1071 fited the bill. But was shuting down after a few minutes running due to switching spikes. This was cured by fitting a Mosorb 15KE200A (1N6303A). It runs fine on my old 2stroke lawn mower,
     
  4. ruparaj jena

    ruparaj jena

    1
    0
    Feb 12, 2016
    sir will this module will replace my rd 350 cb points ????
    please help
     
  5. debe

    debe

    253
    65
    Oct 15, 2011
    No it wont work on a RD350 as its a battery powered ignition system. The module is for Magneto type ignition.
     
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