One coil FM tuner (CB9698E)

This circuit with only one tuned coil was found in a 1980s American documentation. The circuit uses components from that time.

| Clique na imagem para ampliar |

Negative Bias Source (CB6736E)
This circuit provides a negative supply for circuit biasing. The current is very low. The voltage...
Comparator with Hysteresis with the LMV321 (CB4747E)
This very low voltage circuit with the LMV321 was obtained from its own datasheet. The circuit can be...
Electromechanical Totalizer Powered by Light (CB12099E)
This circuit was found in a Modern Electronics from 1990. It activates an old electromechanical pulse counter,...