Replica Knuckles can be built as 6 volt in Calif. How about replacing the (OE style) two-piece spring loaded Knuckle points set up and using a set of Bosch 12V, spring-ribbon, single points. W&W Cycle, Wuerzburg http://www.wwag.com gave us a Knuckle conversion kit for Knuckle timer, that uses Bosch points. We had the instructions translated to reveal the heading: "Adapterkit for Knuckle-/Pan-/Flatheads With Hand Adjustable Ignition" This kit includes the hardware and instructions for changing out the OE points assembly, by drilling two small holes in the timer base, and no other destruction of the OE parts (if I read the instructions completely). The '36-47 timer can be retro-ed back to stock at will. The kit is called "Ideal" Vintage Points Adaptor Kit- "The original, shaky and multi-piece circuit breaker is replaced by modern BOSCH-points through an adapter plate. Easy Installation. Kit contains adaptor plate, points, condenser and small parts". Part # 12-299 This from their "2000" 3-D catalog (replete with 3-D viewing glasses). I wonder if they needed 3-D glasses to edit the material?