When the 24 V battery voltage drops below 18 V, this circuit cuts off its discharge. The circuit is from 1968 documentation. It can be adapted to operate with other voltages.
This interesting circuit found in American documentation generates a busy signal, without you...
In this circuit R1 is 56 ohm and R2 is 220 ohm for the 110 V network. SCRs are according to the...
We found this circuit in a 70s EDN. The circuit makes use of operational of the time. | Clique na...