Originally Posted by
Pompiere
If LED stands for light emitting DIODE, and a bridge rectifier is four diodes soldered together, couldn't you just solder four LEDs together in a bridge configuration to work with a dynamo? Or am I forgetting something from electronics school? It has been a while and the only LEDs we had were little red ones.
Yes.
The real caveman solution (my specialty) is to attach one wire from the dynamo to the "+" of the headlight and the "-" of the taillight; and attach the other wire to the "-" of the headlight and the "+" of the taillight. That way the alternating current goes to the headlight and taillight alternately, giving each one full power half of the time. No on/off switch, no capacitor, nothing fancy.
It works, I know 'cuz I've done it! But my $80 B&M headlight works
so much better, I can't recommend anything else.