We found this circuit in an American documentation from 1969. The circuit works with the polarized transistor in reverse in the avalanche mode.
We found this complementary simetry configuration in a1980s documentation. Transistors, which are...
This circuit using current components was found in an old documentation. It is a sequential circuit...
This 80's circuit turns off a TV or other appliance after a set time. The base is a 555 IC and the...