NOR Gate with Operational (CB19837E)

In the figure we have the way to implement a NO OR or NOR gate with an operational amplifier. The number of inputs can be changed.

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555 debounced switch (CB9229E)
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200 mA LDO - Ultra Low Noise (CB15565E)
The circuit shown in the figure consists of a 200mA low voltage drop (LDO) regulator using the...
5 W Amplifier (CB6167E)
Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be...