Institute Newton C. Braga

Circuit Bench

Low current ammeter (CB7917E)
Found in a 303 Circuits from the 90's this circuit can use the lowest current range of a common...
27 MHz transmitter without crystal (CB20467E)
We found this circuit in recent English documentation. The frequency is adjusted by the core of...
Tuning Indicator (CB16620E)
This circuit must have its input connected to the collector of the last IF transistor of the FM...