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A plain triangle passing its input through unchanged.
Also known as: Non-inverting buffer, Line driver symbol
A buffer outputs whatever it is given, which sounds pointless until the reason is stated: it restores a weak signal's drive and isolates one part of a circuit from another. It is the inverter's symbol without the circle.
Denotes a non-inverting buffer whose logical output equals its input.
Contexts: Technical drawing, Electrical equipment
Exists to restore drive strength and isolate loads rather than to change the logic, which is why it appears in a circuit with no logical effect.
Contexts: Technical drawing, Electrical equipment
Is the inverter symbol with the output circle removed, which is the difference between passing a signal and reversing it.
Contexts: Technical drawing, Electrical equipment
A plain triangle lying on its side with its point to the right, one line entering the flat back and one leaving the point.