Non-inverting amplifier (CB9018E)

Found in documentation from the 70s, this circuit uses an operational one from that time. It goes for modern equivalents.

Power Failure Indicator (CB6113E)
This circuit can be found in a 1970 Motorola documentation. The circuit can be implemented with general...
Isolated voltage sensor (CB8900E)
This shield circuit with an optical coupler was found in an 90s EDN. The circuit can be used with...
Automotive Voltage Regulator (CB1442E )
This circuit is from 1977 documentation, and high current equivalent transistor must be used. The...