Homebrew spark ECU in 1990

[vlad01]

Very Very cool.
I'm a bit of a history buff, and that often spills over into practical everyday life.
Somehow the same line of enthusiasm rubs here in my engine management stuff.(go back to the early systems,learn them to understand fully the complex)

I have always wondered,Had someone made a fully analogue spark computer, with no IC's ah la the djetronic. http://members.rennlist.com/pbanders/ecu.htm

This one comes close.

lol this looks familiar. I had a VW with that system in it. I was like fark! 12 transistors! holy shit better call NASA

[j_ds_au]

Wow, that's quite some work! Very impressive.

I once designed a spark-only ECU, but it was purely analogue. Never got around to building it though.

For a digital design, I wonder why you didn't use a micro? MC68705R3 or MC68HC705C4 or even ye olde 8749 would have been commonplace back in those days.

Joe.

[Holden202T]

wow, the internet never ceases to amaze me by what can be found out there

[barana]

this is cool
http://www.slantsix.org/forum/viewtopic ... 4a1f9b06cb
and these are ultracool
http://auto-nomics.s3-website-us-east-1 ... l#identify