Institute Newton C. Braga

Circuit Bench

Up to 24 Hours Timer (CB18085E)
This circuit is based on a CMOS that is still common in the market. The circuit can be programmed for...
Signal Injector (CB16248E)
Here we have a signal injector for the medium wave range, which uses only one transistor. This...
Digital Remote Control (CB24400E)
This ultrasonic digital remote-control transmitter was found in the January 1976 issue of Radio...