Electronic devices are formed on a substrate that is advanced stepwise through a plurality of deposition vessels. The locking device includes a seating member and a posted member. The power multiplier system has a first output terminal and a second output terminal, the amplifier stage is connectable to the second output terminal for driving a load connectable between the first and second output terminals. Entries before the starting point are effectively wrapped to the end of the pseudo-random table. Then, a conductor layer 5 is formed by electrolytic plating in the form of the wired circuit pattern on the exposed thin conductor film 2.