Dynamo
To see the above two postings from such experienced men in Vincent lore as Peter and Len is heartening. As a Rudge enthusiast also, I am used to Miller Dynos and have not had too much trouble from them on that make, which does not travel as far or fast as my Stevenage ware.
I converted the VIN dyno to 12v by following the KTB instructions re fitting a Series D type AVC , but instead fitting the AO solid state jobbie in the miller box. BTW, AO designed bespoke to fit in these, and so far mine has not 'cooked'.
I attempted to run a 45w headlamp bulb but the dyno would not have it. Having as I thought fried the armature, I was loaned a Lucas unit from the very kind Dick Sherwin for a few months ( or as long as I wanted) to stay lit up. Meanwhile, I put out a plea for any dyno bits and two members again kindly responded, one having gone the Alton route and also having a Velo ( Miller electrics again) and had a box of Miller donor bits similar to the ice cream tub I had containing odd Rudge Miller dyno bits,( Funny how everyone keeps Dyno Gear in an ice cream tub.)
Eventually I was able to assemble two Dynos. I used the two pin plug F & D as per the Rudge having drilled an extra hole in the cover. The bearings are inexpensive. I bought sealed ones and removed one side of the seal so I could regrease, replacing to the outside of course.
With one of Mr Goffs nice LED stop/ tail replacements, and using the Honda reflector( from M&P) in the std Miller h/lamp from a CN250, plus one of Mr Goff's 35/35 Halogens, the lights, plus 23w indicators, are now far better than standard and acceptable at the sort of speeds I would safely contemplate on todays roads. It has been fine for the last 4000 miles, charges well and balances nicely, using two 6v 5ah dry batteries in series crammed in std battery box.
Sadly, I have to use my modern bike to get my own back on the drivers who don't so much have headlights, as have a laser weapon to blind oncoming traffic. see thread on HD lights.