The Hall effect transducer wouldn't be able to make and break the current to the coil directly, it needs an amplifier so to speak to carry the load of the coil.
That is what my ignition does, the points switch the transistors on and off, the transistors carry all the current. The points actually only carry milliamps instead of 4-6 amp that they normally would. You'll wear the rubbing block down before the points ever wear out. I believe this was featured in Pop Mech in 1964....
John
Last edited by Whitelightning; 09/25/2014 12:51 AM.