Institute Newton C. Braga

Circuit Bench

Video Amplifier (CB4209E)
This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The...
50 W Amplifier (CB6180E)
Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load....
Adapter for 4-track oscilloscope (CB7062E)
Found in a Popular Electronics from the 90s, this circuit transforms an ordinary oscilloscope into a...