Alternator regulator circuit

[magicsmoke]

Hello! What a site!
There are loads of fantastic circuits here to solve real every day problems i face!

Im hoping to try out the alternator regulator circuit. The page describes an adjustable circuit but i cant find it anywhere. Anyone have it?
Thank you!

[volkswagenvan]

Hi Magicsmoke,

I believe that the adjustable part is the zener diode choice to set the Reference Voltage.
Gary never posted a truly Adjustable version that I know of.
chemelec.com/Projects/Alternator/Alternator-Reg.htm