Institute Newton C. Braga

Circuit Bench

15 W Class D Stereo Audio Amplifier (CB12952E)
The circuits shown in figure 2 are suggested by Texas Instruments (www.ti.com) make use of the...
Automatic Shutdown Relay 4001 (CB25743E)
We found this circuit in the July 1994 Radio Electronics magazine. The circuit uses a...
Audio Selective Filter (CB24272E)
This sophisticated filter for audio signals was found in Radio Electronics magazine. The...