Institute Newton C. Braga

Frequency Indicator (CB6342E) This simple circuit was found in an Exar publication from the 1970s. The circuit makes use of the 567 PLL indicating when the signals are in the indicated frequency range. a hre
Frequency Indicator (CB6342E) This simple circuit was found in an Exar publication from the 1970s....
Integrated Alarm (CB16276E)
This alarm is designed for doors and windows, but nothing prevents it from being used in cars,...
Power sensitive relay (CB22293E)
This circuit was found in a documentation from the 60s. The drive transistor is a power...