Its a 12 volt pertronixs ( i hate 6 volt electronics ) works great with a bosch coil , #00012 Bosch b amazon ..............
Heres the deal on six volt electronics they dont work well and have a 6 volt to 7.2 volt threshold ............12 volt runs from 9.6 to 14 .2 larger buffer ...... Wanr six volt leave it points !!!!