Originally Posted by
Zaphod Beeblebrox
I'm not familiar with the unit but according to the Sturmey Archer Heritage site its basically a bridge rectifier with some dry cell batteries.
here's the diagram...if I'm reading it correctly (and I
think I am) you'd hook the Dynohub to the two posts that
aren't "+" or "-", and hook the lights to the "+" and "-" posts.
Can't help you with the chrome cover, sorry
I just read your comment and saw the very helpful diagram. I am renovating an original condition Humber bicycle that just needs a service and new tyres apart from the lights not working. It has sat for more than 30 years in the back of a garage.
The dynohub is generating power, so Im guessing that the battery unit will not work if the batteries have failed.
Batteries can be sourced but I am concerned that the rectifier will have deteriorated. Have you seen a circuit diagram documented anywhere.
I have yet to disassemble the unit, and it looks like being a problem after so long, so I want to be as prepared as possible.