Problems & Solutions. 1  Please help find the manual for this Swann Communications Security Camera... 2  Please help find the manual for this Swann Communications Security Camera... 3  cant find manual for 41502s compact system... 4  I NEED A COPY OF SWANN HOME SECURITY CAERA... 5  need to know what the green, blue, white, yellow  w...
The thyristor is a four-layered, three terminal semiconductor device, with each layer consisting of alternately N-type or P-type material, for example P-N-P-N.n earlier gas filled tube device called a thyratron provided a similar electronic switching capability, where a small control voltage could switch a large current. It is from a combination of thyratron and  transistor  that the term thyristor is derived.
A ventricular assist device (VAD) â also known as a mechanical circulatory support device â is an implantable mechanical pump that helps pump blood from the lower chambers of your heart (the ventricles) to the rest of your body. A VAD is used in people who have weakened hearts or heart failure. Although a VAD can be placed in the left, right or both ventricles of your heart, it is most frequently used in the left ventricle. When placed in the left ventricle it is called a left ventricular assist device (LVAD). You may have a VAD implanted while you wait for a heart transplant or for your heart to become strong enough to effectively pump blood on its own.