Found in a 1960 General Electric documentation, this crowbar circuit blows the fuse in case of excess current. The circuit is for 12 V sources triggering between 14 and 17 V.
Using a 555 this circuit was found in old documentation, but it is still valid. | Clique na imagem...
This circuit was obtained in a 1976 magazine. We can use the 555 and another BC548 to generate square...
The circuit presented here shows how two flip-flops of a 4027 can be connected to perform a...