Institute Newton C. Braga

Circuit Bench

Speaker Circuits (CB16349E)
The correct connection of speakers and tweeters in a speaker to obtain better sound quality,...
Dual Power Supply with 9 V Battery (CB1344E )
The operational amplifier of this low current source may be any of the JFET type. The output...
Neon Relay Control (CB21404E)
This circuit was found in an old neon lamp applications publication. The relay must be in...