G'day all,
all this talk reminded me I had a new one for the '51, 6 volt with dvr2 to 12 volt. I found it, a Wassel 8-0-8. Wired it backwards first, Doh. Motor off, headlight on = -4. Motor idle = -4, motor rev = +4, motor rev plus headlight on = +2. So I can sleep tonight.
Cheers