It normally takes two transistors to build a blinker circuit (in order to make positive feedback possible). However, you can also use a photo-resistor (LDR) that is illuminated by an LED. The feedback ...

Here, we are designing a simple light activated switch circuit using LDR. It can be used in security applications like when there is darkness on the LDR, it stops lighting. The main principle of this ...

COSTA MESA, Calif.--(BUSINESS WIRE)--Semicoa advances its family of Radiation Hard (RH) Bipolar Transistor products by delivering Radiation Hard Bipolar Transistors built to the highest quality levels ...