Fast adder 1 (CB7055E)

We found this circuit in an Electronic Engineering from the 90s. It applies to any logical family.

Micro Power Schmitt Trigger (CB25139E)
Using a CA3030, this circuit was found in the May 1988 Radio Electronics magazine. The power...
Comparator with Hysteresis LM139 (CB4007E)
This circuit, from the 1990 Motorola Dataar Databook, can use any LM139 series comparator. The circuit...
Basic Operational Multivibrator (CB18990E)
This circuit was suggested by Texas Instruments in a manual of operational amplifiers. Other...