Institute Newton C. Braga

Circuit Bench

Relay for TV remote control (CB20971E)
This circuit is from a Popular Electronics from the 90s, consisting of a repeater relay for remote...
MA1026 Portable Digital Clock and Thermometer (CB24684E)
This is the battery-powered version of the previous circuit. The circuit is from the same Radio...
Touch switch (CB21352E)
Found in English documentation, this touch sensitive switch must be powered by an isolation...