Institute Newton C. Braga

Circuit Bench

Toy siren (CB8655E)
Found in 90’s English documentation, this rising and falling siren, manually activated, drives a...
Intercom gain remote control (CB6294E)
This circuit was found in a 1964 Electronic Design. The circuit can be implemented with equivalent...
Who is the fastest Game (CB12394E)
This circuit was found in a 1990 Electronics Handbook. The transistors can also be the BC548 and...