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 |

Resynchronizer Circuit (CB20096E)
This circuit makes use of an uncommon TTL component today, but it can be implemented with...
Lie Detector (CB16987E)
This circuit was found in a 1990 documentation. It uses very common transistors still today and...
Basic transistorized stage (CB9060E)
Found in American documentation from the 1980s, this circuit for general purpose transistors has good...