A manufacturing method of a thin film transistor. The converter plug has a size and shape that is comparable to a standard wall plug and is capable of plugging into a standard wall socket. Downstream of the carburetor, via a power line and a metering device disposed in the primer line, the fuel-conveying system is connected to an area that in the intake phase communicates with the crankcase. The COTS light emitting or transmitting display subassembly can be connected to the second frame. More particularly, the invention relates to a compact disk case from which the disk can be extracted using only one hand without opening the lid, although the case can be made out of a single part. The method comprises generating a spark-discharge plasma channel between the electrodes of the spark ignition device, and igniting the combustible charge.