Home › Forum › Ask A Member › How do Atom Computer Ignition modules work? › Re: How do Atom Computer Ignition modules work?
After sample testing in a working module, 4 out the ten purchased 2SD1071 failed to produce any spark, so I have determined that these are fakes or factory rejects that did not meet requirements. I did purchase the BD649 big brother the BD651 its voltage rating is 120v CE and produces nice bright snap when I flip the Flywheel. I have also mounted the 200v transzorb. I was wondering if this transzord could be dropped to 150v to better match the Darlington output, I think that at 200v the higher voltage will kill the device? And from the scope images on page 8 it looks to be about a 300v spike produce by the coil induction, I think that we need to find a device rated at 300-400v that can handle this. so I have ordered some BU931T to test.