Institute Newton C. Braga

Circuit Bench

Digital control of relays 2 (CB23774E)
This circuit consists of a rearrangement of the previous circuit also using 4 relays. We found this...
Test your Nerves (CB12709E)
The Nerve-test is a traditional electronic game. The player must pass a metal ring through a...
Summing amplifier with low input current (CB9010E)
This circuit was found in a 1980s American documentation. Operational amplifiers are from that...