Autosport Labs

I built a Willette programmer, but couldn't get it to work. Fortunately I found a Dataman 48 at work which did the job in seconds.

Ahh.. spotted them now. I was just confused as I couldn't see them on the board and wondered if it meant the schematic was out of step.

Just getting my head around the unit. In all the pictures of the V3 board, I can't see any of the components required to create Vref, L1, C11 & C14. Have they been deleted or are they installed on the back?