Institute Newton C. Braga

Circuit Bench

Voltage Controlled Low Pass Filter (CB14370E)
The integrated circuit used in this project is not common today. The circuit is from the 1994...
Triac power control (CB9258E)
This power control circuit was found in General Electric documentation from 1969. The table...
Remote Control by Walk Talkie (CB16365E)
We found this project in a 1982 publication. What we have here is an audio signal relay trigger, which...