Am currently replacing my old Smiths rev counter with a new one from Speedhut.

Current Smiths circuit seems to be -ve Coil pole to Rev counter then rev counter to Distributor

New rev counter doesn't provision from connection from Rev Counter to Distributor so do I put direct connection from -ve pole of coil to distributor and a parallel takeoff from -ve pole of Coil to new rev counter which also has an earth wire to vehicle earth.

Just -ve to rev counter, rev counter to earth (Or positive supply, should that be what it requires).

Much like this:


[Edited on 30/3/12 by loggyboy]