Buy a disassemble camera viewfinder, preferably PAL, NTSC dual system. Because the cable is not easy to solder, the boot can be removed, and three wires are connected according to the cable connection (usually with a coil), which are ground wire, 5v power cable and signal cable. Twist the tip of the soldering iron, solder with residual heat, and connect the plug to the viewfinder 3 lines. Then, fix it on the viewfinder with a tight belt so that it is comfortable to wear on the head. Use a 4-cell rechargeable 5th battery string together to protect the step-down diode in a string. When the battery is running out, the diode can be shorted. In addition, the 3V voltage line is taken out, and the VCD is connected to the power supply terminal. The signal source can be selected from small DVD and VCD players. They are best equipped with MP4 compact disc playback function with shockproof function and shaped like a round cake. Can also be equipped with a TV video output interface. Ultra-compact MP4, MP5 player can be downloaded to the Internet in bulk, and can be played with you after downloading. The RM and RMvB formats take up less space and are as DVD-like. A player with a 150G hard disk can be used as a download tool.
Super AC Contactor is exactly copy schneider newest model.The up parts and base will be easy opened to change the coils. On the top of Magnetic AC Contactors, there is a transparent cover for dust improved purpose.
Super AC Contactor is suitable for using in the circuits up to the rated voltage 660V AC 50Hz or 60Hz,rated current 95A.It's mainly used for making and breaking electric circuits at a long distance and for frequent starting/stopping & controlling AC motors. Combined with the auxiliary contact group,air delayer,machine interlocking devence etc,it is combined into the delay contactor,mechanical interlocking device etc,it is combined into the delay contactor,mechanical interlocking contactor,startriangle starter,with the thermal relay,it is combined into the electromagnetic starer.
Super AC Contactor,Electric Magnetic Contactor,Alternating Current Contactor,AC Contactor Alternating Current Ningbo Bond Industrial Electric Co., Ltd. , https://www.bondelectro.com