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.
Figure Bellow shows how to use a 7490 (TTL) IC to divide the frequency of a TTL signal by 6; The...
This circuit was found in a 1980s documentation. Q1 and Q2 can be BC548 and SCR a TIC106. The...
This circuit allows to obtain an output pulse independent, in duration, of the action time on...