Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
You can actually test the bulb and the dynamo at the same time. Hold the side of the bulb base against the dynamo base, and connect the dynamo terminal to a wire to the center contact of the bulb. Spin the little wheel. If you're doing it right, and the bulb is good, it will light up. The problem with this plan is that if the bulb doesn't light up, you won't be sure you were doing it right.
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