We found this circuit in an American documentation from 1969. The circuit works with the polarized transistor in reverse in the avalanche mode.
This circuit can measure voltages from 0 to 10 V with a very high input resistance. The circuit is...
Found in a Radio Electronics we have in the figure a circuit to disconnect an SCR with direct...
Found in a 90’s Popular Electronics, this circuit uses two CMOS inverters to generate a signal of...