No longer produced, Mallory was purchased 7 years ago by MSD, and MSD by Holley 3-1/2 years ago, but, the Mallory "Uni-Lite" used light sensor triggering.
Keep on it, there has to be a simple bunch of components to get you where yu need to go. BTW, the Uni-Lite failed because they were designed to run on a stock automotive points system with ballast resistor in place, and then, along comes the hi-perf set, removed the ballast resistor "to make it produce more spark voltage, and failures occurred all over the place. I have them set up on cars that killed them before I had the owners replace the stock ballast resistor in the system, and add the Mallory (MOPAR) resistor into the circuits. The Uni-Lite had NO drivrs to make longer dwell time, which charges the coil more, to make a larger spark, and, even with a "Hi-Perf" useless coil, spark output was same as a point distributor, exactly as Boots Mallory designed it to do.
Now, you are only looking for triggers, good, you don't have to use the circuits Mallory did, so, I doubt you would have problems with the triggers, as you are doing your own system from scratch.
I have felt for decades that the best DROP-IN POINTS ELIMINATOR system was always the Uni-Lite, as the worst today are Breaker-Less, and our best reason not to run one, any and all PerTronix Ignitor, I, II, LS and III. All the Uni-Lite needed was for the perf idiots to leave it alone, and dual resist it, that fixes the too high an input volts failure issues in their tracks
What I invented, designed and build isn't a low perf conversion, it is based on a GM High Energy Ignition (HEI) module, a far better processor than a points eliminator.
My distributor conversion website is davessmallbodyheis.com They ae not what you are seeking, they are magnetic triggered.
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