"Jeff" wrote in message news

I inspected the electrical system and found that fuse on the negative
lead had blown. Why manufacturers persist in providing a negative
wire fuse will remain a mystery as there are very few positive ground
vehicles still in service and even marine radios with floating grounds
are scarce. I have no idea where the radio was getting its ground
return for reasons that will soon be obvious. I replaced the fuse and
continued looking for problems.

The negative fuse is nothing to do with positive ground vehicles (and a
radio with the case connected to negative would not work in a positive
ground vehicle anyway without additional isolation).

I wired up a neg ground rev counter to my pos earth 1963 mini in 1969 by
insulating the live case of the rev counter and earthing the live
terminal...worked well .....

"Jeff" wrote in message news

I wired up a neg ground rev counter to my pos earth 1963 mini in 1969 by
insulating the live case of the rev counter and earthing the live
terminal...worked well .....



Most of us just reversed the battery etc. and flashed the dynamo.

Jeff

I didn't ....