Institute Newton C. Braga

Circuit Bench

RIAA Stereo Preamplifier (CB11479E)
This circuit was discovered in an English publication in 1979. The circuit can still be assembled with...
Integrated FM Radio (CB14571E)
This circuit uses currently uncommon components, including the 10.7 MHz (FI) filter. This circuit was...
3-Range FET Voltmeter (CB25570E)
This circuit can work with almost any JFET. The circuit is from an Electronics Now from April...