12-02-2020, 01:36 AM
"Parazine is correct. The C35A had a small, cut-out style box in place of the C35M terminals, The little box contained the resistance and the field fuse."
According to that very useful 'Austin Seven Electrical Guide' by Harry Hales-
1931 Long Wheelbase cars were fitted with Lucas Dynamo C35 A fitted with a half charge resistor and field fuse in a pack on the body. When four speed cars were introduced the switch panel went from Lucas SM5 to SA1 with full and half charge with cut out CF3. Around September 1933 the half charge resistor and fuse pack was moved to a new cutout type CFR.
When the 7 was changed to positive earth the Lucas Dynamo C35M with a cut out CFR2 was fitted.
Both the late 35A and all 35M had the resistor in the cutout and a plain bush at the distributor end.
According to that very useful 'Austin Seven Electrical Guide' by Harry Hales-
1931 Long Wheelbase cars were fitted with Lucas Dynamo C35 A fitted with a half charge resistor and field fuse in a pack on the body. When four speed cars were introduced the switch panel went from Lucas SM5 to SA1 with full and half charge with cut out CF3. Around September 1933 the half charge resistor and fuse pack was moved to a new cutout type CFR.
When the 7 was changed to positive earth the Lucas Dynamo C35M with a cut out CFR2 was fitted.
Both the late 35A and all 35M had the resistor in the cutout and a plain bush at the distributor end.