OK, recently someone asked if there was a schematic available for the 1978 Igniter so he could repair his bad one. I happened to have one in a unknown state so I tore it apart last night. I was tired of working on the yard! The first pic is the igniter I took apart... In the second pic I have taken the metal case off. It just pries loose. This exposed a very old school circuit board with discrete components on one end of it, and a large power transistor mounted on a heat sink on the other end. The discrete components make up a pre-conditioning circuit for the pick-up coil from the dizzy. I'll post a hand drawn schematic of this section later tonight. The third pic is the back side of the circuit board.