Found the other electronize I knew I had. So there are 4 that work fine (1 of those could do with new wiring). In the bag there are another two that I have taken various parts off over the years to keep the others going.

I'll drop the price as well to get them to a new home. £20 for each electronize. £5 for the bag of spare parts. If you take all 4 controllers I'll chuck in the spares as well.

Incidentally for the new guys on here the 15A rating of these controllers is a true continuous rating. I've run 12v drills on 24v using these in the past and they have never let me down.