Institute Newton C. Braga

Circuit Bench

Integrated Amplifier and Driver (CB24771E)
This 50 W amplifier was found in the November 1983 Radio Electronics issue. The circuit is...
Pre with RIAA equalization uA709 (CB19619E)
This circuit is from old documentation, which means that the operational used is not easy to...
Mixer with the 741 (CB4893E)
This circuit was originally designed for communications applications. We found it in a 1980s...