[billhaworth@aol.com]

Thankyou. I will do the same!

[singleminded]

Hi Bill
In my opinion it makes no difference so long as the dynamo and regulator work in the same polarity, it is then only a matter of  matching the battery polarity.
Negative earth seems to be the most common though ,which is the way I've wired my bikes.
Regards
John Hood

[billhaworth@aol.com]

Should I wire a 1935/5 Model 9 with positive or negative earth?
am gointg to use a voltage regulator, probably electronic, and convert the three brush dynamo I have to two brush.
I haven't found a wiring diagram for 1930's bikes with voltageb regulator, just the one for three brush dynamos
Bill Haworth