Institute Newton C. Braga

Circuit Bench

Comparator with feedback (CB9579E)
Found in American documentation from the 1980s, this circuit has a diode feedback. At the exit we...
Ping Generator (CB10510E)
This circuit was found in a 1985 English magazine, but it can still be easily assembled, as the...
Tuning Indicator (CB1489E )
We found this circuit in a 1975 publication. The power supply must be symmetrical, but other...