Institute Newton C. Braga

Circuit Bench

Sleep Inductor (CB12625E)
The critical components of this 1978 circuit are transformers, which, hopefully, can be obtained from...
Signal Generator 555 (CB16245E)
An excellent signal generator for the audio track was found in a 1983 documentation. Its complete...
Common Emitter Stage (CB4936E)
This is a typical common emitter amplifier stage configuration. The transistor can be used...