Fast adder 1 (CB7055E)

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

Ultrasonic Receiver (CB18477E)
This is the receiver for the CB18476E, but it can be used with other transmitters found on the...
CMOS PLL Siren (CB9205E)
This circuit was found in Radio Electronics from the 90s. The CMOS integrated circuit is a PLL not...
Symmetrical Powered Amplifier (CB5024E)
This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by...