Institute Newton C. Braga

Circuit Bench

Delayed switch (CB21259E)
Found in documentation from the 1990s, this circuit drives an SCR with a delay that depends on C1...
Constant Current Switching Supply 723 (CB13204E)
This circuit is from a documentation from the 70s, but it can be assembled with a TIP32 transistor in an...
Pulsating Buzzer (CB24836E)
This circuit was found in the September 1984 issue of Radio Electronics magazine. The circuit is...