Institute Newton C. Braga

Circuit Bench

Preamplifier with NE542 (CB1258E )
This circuit is from the Philips manual of 1990. The integrated circuit is not very common. The...
360 Degree Phase Shift (CB6567E)
This circuit was obtained from ancient American documentation based on the application of neon...
5V x 10 A regulafot (CB9960E)
This configuration appears elsewhere on this site. We found it in a Motorola manual from the 70s....