Thanks Trev, I have seen 12 volt armatures and field coils on e-bay for the E3L, I'd like to at least try to rebuild the mess that I have now, not exactly sure what I'm doing , but I'll try anyway. 12 volts and 60 watts seems to be ok for the Velo's ... or so I have read elsewhere.
I don;'t know which bike the dynamo that I have was originally on ...may have been a Velo.

Thanks again.... I may be yelling for help !