"Steve Kurt" wrote, <snip> "My memories of lights from the mid 70's were not all that good. I have a little block dynamo (Soubitez?) that was not bad, but it was noisy and had a lot of drag. The Wonder battery powered lights were pretty poor, and required an odd battery pack. There were some curious little lights that you would strap to a leg for visibility. Haven't seen them in a long time. The venerable Belt Beacon was a marvel, for a product of the late 70's. It was a simple two transistor circuit that made a bulb blink, but it provided a considerable amount of visibility."
I happen to have a Genuine WonderLight with its handlebar mount, FS at $13 including postage in US. Will throw in a bag of Genuine leg lamp parts, dual view (red to rear, white to front). Or, what parts do you want to part with?