Institute Newton C. Braga

Circuit Bench

High Voltage Photoelectric Relay (CB12836E)
This circuit, which we found in an Argentine publication from the 1970s, uses a large high voltage...
12 V x 1 A Power Supply (CB8682E)
Found in a 70s RCA manual, this circuit uses transistors from the era. Equivalent types can be...
Standard Differential Amplifier (CB14070E)
In the figure we have a precision differential amplifier found in the Linear Applications Handbook of...