Institute Newton C. Braga

Circuit Bench

Perforated tape reader (CB8032E)
The original application of this 1967 Ferranti circuit can be changed so that it functions as a pass...
144 to 146 MHz amplifier (CB19563E)
This circuit amplifies VHF signals in the two-meter range and is very critical, especially...
2 Transistor active antena (CB4751E)
We found this circuit in a Poptronics of the 90s. The circuit operates from 100 kHz to 30 MHz and...