Originally Posted by randya
Find a bike store that sells used stuff and look for the older Union bottle dynamo sets, I pick these up all the time for less than $10 complete with lamps, they usually work just fine; just spin the bottle first to make sure the bearings are good, you really can't test the output unless you mount it up on a bike first. For replacement bulbs for older Union lamps that use bulbs w/ screw-in bases, I buy from Reflectalight:
http://www.reflectalite.com/halogenpage.html
They've got halogen or regular screw-in bulbs for the old Union lamps (halogens: GH93 or GH106, depending on whether you're also using a dynamo-powered taillight; GV605 is their standard bulb). Reflectalite also sells dynamo regulators so you won't burn bulbs out going fast downhill:
http://www.reflectalite.com/regulater.html
Reflectalight's service and delivery times are excellent.
if you find an old union bottle generator, i would like to buy it. i'm looking for a replacement for my old worn out one on my bike that i bought in the 80's. it is a typical aluminum bottle with the name "union" on the black plastic trim over the bracket. HERE IT IS:
