Originally Posted by
Tourist in MSN
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Photo below, I picked up a cheap ($10) dynohub wheel at a bike charity and put it on my errand bike, Shimano so it is grounded to the fork. I had a D Lumotec headlamp sitting on the shelf, the headlamp was made for bottle generators, thus no switch and grounded to the mounting bolt. Simplest wiring job I have ever done, hub grounded to the fork, light grounded to the fork, so only a single conductor wire was needed.
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There's a lot to be said for simplicity.
I still like the idea of block dynamos, such as this Jos that I bought in the 70's. Almost nothing to go wrong... other than the basic issues of incandescent bulbs and being driven by the tire.
The Schmidt hub dynamos with the connections at the end of the axle, and which mate to contacts at the fork dropout, are possibly as good as can be done with a hub dynamo.
Steve in Peoria