Institute Newton C. Braga

Circuit Bench

Bipolar Digital Amplifier (CB25627E)
This high-gain digital amplifier uses general-purpose transistors. The supply voltage is logic...
8 Hz Twin T (CB6718E)
This 1968 Hughes circuit uses period components and operates at 8 Hz. Current equivalent...
Overload Protection (CB19973E)
This circuit is from the time of the tubes, being indicated to operate with transmitters turning off...