[Fot] Ignition improvements on a TR6

Randall TR3driver at ca.rr.com
Sun Jun 26 17:58:15 MDT 2011


> More like HAD a high failure rate. Mostly because, like 
> pertronics, they had
> no steering diodes to prevent damage from reversed polarity 
> connection.

Could be, but the problem was certainly not only lack of a diode.  In fact,
the unit I took apart after MSD pronounced it unrepairable HAD a big diode
in series with the hot lead.  And since it failed while I was running down
the road, I seriously doubt there was any reversed polarity event.

But I will say that it was nice of the MSD tech to tell me the ratings of
the charred components.  With a little creative wiring around the burned
section of the board, and a 5 watt resistor in place of the original 2 watt,
I was able to resuscitate the unit and it worked for several more years.

-- Randall  



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