Voltage reference (CB8466E)

Found in a 90s General Electric documentation, this circuit has a drain current of just 1.5 uA. The load current is 200 uA.

Inverter Amplifier MC33171 (CB14468E)
This circuit with 5 V power was suggested by Motorola's Linear Databook of 1990. The circuit has...
Integrated Intercom (CB16336E)
We found this circuit in a 1982 documentation. An intercom to be good must be sensitive and have...
Motor Timer (CB14974E)
This circuit is indicated to determine the flight time of an electric motor model airplane. The...