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|Oscillator type||Babbling brook|
|Number of cells||18|
|Rotor type||Diagonal on-off|
|Year of discovery||Unknown|
The great-on-off is the ninth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than the quadpole but more common than the figure eight. It is the ninth most common oscillator on Adam P. Goucher's Catagolue.
|Teardrop + traffic light → great on-off|
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- "Pincers". The Life Lexicon. Stephen Silver. Retrieved on May 1, 2009.
- Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- 18P2.475 at Heinrich Koenig's Game of Life Object Catalogs