Institute Newton C. Braga

Circuit Bench

Line Receiver for Shared Line (CB13056E)
In the figure we show the typical configuration of a shared line using a twisted pair where the...
Battery Charger (CB23616E)
This circuit was found in Radio Electronics magazine from October 1964. The circuit uses period...
Microammeter protection (CB8378E)
We found this simple protection with zener diode in a 1967 Motorola documentation. The zener diode...