Suggested by a 1968 documentation, this circuit limits the current of a regulator and can be adapted to other currents. The transistors are from the era.
Found in Motorola's 1965 manual, this full-wave dimmer controls a load that depends on the used...
The two adding and differentiating circuits with operational amplifiers given below were obtained from...
This sophisticated circuit was found in the November 1978 issue of Radio Electronics magazine. Based on...