Even Harris Cyclery no longer carrys the info on these.
Could really use a 'dyno roller' geek to walk me thru troubleshooting/disassembling these units.
It worked fine till this past month then quit.
I'm getting a + or- half a volt reading (analog keeps fluctuating + -).
The set up worked great on my restored 81 Schwin LeTour Tourist and I'd like to ressurect it or replace it with same.