Jeff Stevenson & Lori Adams in Idaho recreated and are selling a
Fun Projects type of Regulator (inside the cutout housing)/QUOTE]
The Stevenson version of the Fun Projects Voltage regulator shunts/shorts the generator output to ground. This also means that you will see your ammeter fluctuating from a low to high charge reading. They are very susceptible to damage if the cutout is subjected to reverse current (polarizing the generator). My understanding is that a 6V positive ground version is not available. There is more information available from Jeff on this forum.