Passed your reply on Pat, with a suggestion that maybe it was home made, and another of the group came back with this:
"Yep, that's what it appears to be, a home made ignition booster, the 3 transistors are the guts of a DC voltage amplifying and refining circuit. Wish Fred Winterburn from Canada (ex eMog, on theMog Google Group sometimes) was here, he would know instantly what it is. Apparently his Dad originated a design for CD ignition and variants starting in the 50s, so he is real up on early high performance/solid state ignition systems..."
Cheers,
