I recently rebuilt the S1R9A9M9 triple coils assembly using a stronger copper #10 gauge wire, as the spiral frame that holds the 90 degree insulated windings. This electromagnet is an unusual hand wind, and was used in conjunction with the demonstration test of Briggs 18HP mower engine on mineral water only in 2008. (See also photo of the similar -S1R9A9M9 Megatran The magnetic field in the combustion chamber comes from the bare wire having magnetic induction. The 6-7-10 amps comes from battery as start, then the alternator was actually running the show with bridge rectifier added. The set up must adhere to several purposes. Magnetic field to spark plug, retarded timing by means of magnetic field, battery current flows THROUGH spark plug, and influence of 90 degrees wind that adds interference to the high voltage attempting to back up to the battery as safety hazard. (They didn't use at the time, a one way protection diodes bank.) I estimated hydrogen fuel spark plug electrolysis and water vapor pressure generated from 10 A + 4.5 Amp from the alternator maximum output of 14.5 amps full wave DC. No voltage regulator for idle RPM. The electromagnet was to be always ON. The main power amps was no more than 34% duty cycle. This 2008 Youtube demonstration was the replacement for not using the non available obsolete dual coil relays and DC to AC inverter box. Power circuit resistance is required to not have shorting, and after careful research, the same cars circuit was most likely included as - diode, coil, diode, coil, diode, parallel diode, to spark plug. This allows for actual ohms as required and also possible Radiant Energy as in my prior notes. My design includes the same exact inductors values as was done in Georgia of 2005-2012 as 60 cycles resonant, as with the 60 cycles Inverter half wave DC used. I need a short reply, so as I know someone is also following this data.