Evac1 is an electronic buzz coil. It acts exactly like a mechanical/Ford Model T buzz coil but with much higher spark energy and much higher frequency of sparks. In the time that a Ford style buzz coil throws 1 spark, Evac1 will throw 10 very hot sparks ensuring good combustion You will no longer need to worry about corroded points and adjustment using a modern power efficient electronic coil.  Evac1 was written up in the Dec/Jan 2020 issue of Gas Engine Magazine.