Hi all, I built a transistor ignition based on what I think is the following:
The April 1980 issue (pages 10 to 15) does feature a Transistor Ignition project which uses BC547/557, BC516, BD131/242A, BU208A transistors to switch the primary winding of the car's standard ignition coil, replacing the mechanical contacts (still employed as trigger switch for the transistors). A one-page update (Transistor Ignition Update) for this project appears in September 1981 page 48.
I changed the input side to support the Hall element my replacement engine was equipped with. Now, 30 years later (and the car having become a classic) it no longer works. Guess what: schematic gone!
Anyone able to dig this up for me? Costs compensated!
Cheers Leonard (NL)