Fast adder 1 (CB7055E)

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

10 W Amplifier (CB6158E)
This high quality circuit with complementary symmetry was found in an Electronics World of 1966....
Headlamp timer 2 (CB6050E)
Found in an Electronic Design this circuit controls a headlamp by triggering a time determined by the...
15 V switching regulator (CB8693E)
This small switched regulator was found in an 60’s Optical Electronics. The circuit uses an...