Institute Newton C. Braga

Circuit Bench

Voltage Range Detector (CB6672E)
This circuit was obtained from American documentation from 1966. It triggers when the two input...
Two Integrated AM Receiver (CB21208E)
This simple radio was found in a Popular Electronics from the 90s. L1 and L2 have 100 turns on a...
Zero Crossing Switch (CB4258E)
This zero crossing switch was found in the 1980s ON Semiconductor thyristor manual. Semiconductors...