Institute Newton C. Braga

Circuit Bench

3-Transistor Commercial Transistor Radio (CB18381E)
This receiver for listening to the TR-23 phone was manufactured in Japan in the 1960s. The circuit is...
Motorcycle Anti-Theft (CB17083E)
This circuit is from a 1992 documentation, but the components used can still be easily assembled. The...
Temperature Control On Off L121 A (CB15128E)
This circuit was found in the SGS manual of linear integrated circuits of 1982. The circuit...