Amongst a load of stuff we have collected over the years are a couple of Pioneer Gen-E-Motor BD-12-A generators, apparently designed specifically for WS No12.
They are similar to the BSA 15V and 30V generators, but have a full carrying frame and an additional flywheel to smooth the engine power pulses.
Output is 220V and 12V.
We have a manual, but would like some information on the WS No 12 itself if possible.
One of the gennies is pretty complete, the other is 95% complete.
Peter