摘要:
According to an embodiment of the invention, a speaker apparatus comprises: a frame having a flange portion on a front surface thereof and a recessed portion on a back face thereof; a terminal lug attached to the flange portion of the frame; a capacitor accommodated in the recessed portion of the frame. The capacitor has a capacitor lead wire connected to the terminal lug at the front surface of the frame. A voice coil is connected to the terminal lug at the front surface of the frame.
摘要:
A gas shielded arc welding method in which a non-consumable electrode and a filler wire are respectively connected to independent DC power sources and the non-consumable electrode is located in a preceding position, feeding the filler wire from behind the electrode. The non-consumable electrode is held in a forwardly tilted position to form an angle smaller than 85.degree. with a workpiece, and the non-consumable electrode and filler wire are applied with inverse electric currents to thereby control the arc direction for formation of sound joints. A welding apparatus is also disclosed which is capable of effecting arc extension control and oscillation simultaneously.