The purpose of the strobe circuit in this sensor amplifier is to reduce consumption. The circuit is from old documentation (1970s), but the idea can be used in modern applications.
This circuit triggers an alarm when the mains power is cut off. The circuit was found in the July...
This acutely tuned circuit was found in American documentation from the 1960s. The transistors are germanium...
This small AM transmitter was found in American documentation from the 1980s. Transistor support...