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A switch which engages other switches without changing their active property. This means that once the activator is deactivated, the referenced switches will return to their previous engaged/disengaged state.


See switch for properties.

References to


The switches to engage.

Referenced from

See switch for referrers.


See switch for messages.

Reversible Piston

An activator is commonly known under the term wikipedia:reversible piston.

Crescendo step

An activator is often used for each step of a regulator to realize a crescendo pedal.