This is a commercial circuit from the year 1958. Transistors are germanium types and transformers and coils are hard to fild today. The circuit is destinated to the reception of medium wave stations.
Figure bellow shows how n flip-flops can be associated to perform a shift register. Data is...
This simple digital frequency meter using CMOS circuits reaches 5 MHz frequency. Input signals are...
This circuit was originally recommended to operate with the emitter of the previous circuit but...