The circuit shown in the figure can be designed with more modern operational amplifiers, as it is from 1994 documentation by National Semiconductor. The power supply must be symmetrical.
This circuit is part of a synthesizer that was published in parts in several issues of Radio...
This symmetrical or dual source without regulation is indicated for the feeding of experimental projects...
Integrated LM108 and LM101A are used in this fast adder with low input current, figure. The...