This circuit divides the voltage of a 12 V battery by 2 and can supply currents up to 1 A at the lowest voltage output. The integrated circuit used is not very common today.
We found this circuit in an American publication from 1977. The integrated circuit is the 7400 and the...
This conventional double time constant circuit was found in an American documentation from the...
This circuit was found in a 1979 magazine. We can use any JFET like MPF102 or BF245. The relay is 12 V...