The Robb Wave Organ is an electronic organ invented in 1927 by Canadian inventor F. Morse Robb in Belleville, Ontario. It uses a unique type of tone wheel synthesis to reproduce pipe organ tones and is one of the first electronic organs ever made. While not as commercially successful as its main competitor, the Hammond organ, The Robb Wave Organ predates the Hammond (and other competitors such as Conn and the Baldwin) in conception, patents, and manufacture and release for public sale.