|7061352||Noise-free low-power consumption wide voltage range DC and AC contactor and remote telephone control system using the same|
A noise-free low-power consumption wide voltage range DC and AC contactor and remote telephone control system is disclosed. A movable iron core is connected to a linkage. Another end of the linkage is connected to a micro switch. A normal close contact of the micro ...
|4618755||Universal matrix switching device|
A universal matrix switching device is used with an automatic test system under computer control for interfacing with a unit under test to test system instrumentation. The switch has impedance matching with isolation between signal paths for high frequenc...