Institute Newton C. Braga

Circuit Bench

DC to DC Converter (CB6580E)
This circuit was found in an American documentation from 1970. We can increase the number of...
Tremolo Using the 555 IC (CB841E)
This sound effect for guitars uses a 555 to modulate the signal from an instgrument pick-up. The...
Tape preamplifier (CB20575E)
With NAB equalization we found this circuit in an English documentation from 1967. The transistors used...