Institute Newton C. Braga

Circuit Bench

Triac Timer (CB24046E)
This circuit turns off a load after an interval of 8 to 80 seconds adjusted on the potentiometer. The...
Sensitive continuity test (CB8209E)
Using an operational amplifier, this circuit from a 90s Popular Electronics, is characterized by its high...
Permanent magnet detector (CB22463E)
We found this circuit in Popular Electronics from 1992. Transistors admit equivalents....