In the figure we have a circuit of an analog computer published in the Radio Electronics magazine of June 1958. Accuracy depends on the components used, mainly the potentiometers.
This circuit was found in an American 1980s documentation. The integrated circuit used is uncommon...
We found this circuit in a Radio Electronics magazine from June 1992. The circuit has a power...
This simple audio and RF signal tracker was found in a Japanese publication in 1967. The...