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Brian Cameron Brian Cameron is online now
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Join Date: Apr 2002
Location: The Thawing Wasteland of the North
Posts: 700
What brand/model of SCR / thyristor did you use for the repair? Wondering if the specs for the new one are somehow different and causing a problem.

I’ve not had the problem you describe but i did fry my 79 SC CDI when boosting a flat battery and inadvertently reversing the polarity on the jumper cables, whups.

New zener diode set it right and no problems since, although i’ve only run it for a few hours since i’m still finishing up a front end rebuild. I’ve bought replacements for all the other components so i can rebuild when/if needed, even if components become NLA.
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Old 10-01-2024, 09:31 AM
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