electric organ vs Hammond organ

electric organ and Hammond organ both are nouns.

Word	Noun	Adjective	Verb	Adverb
electric organ	Yes	No	No	No
Hammond organ	Yes	No	No	No

As nouns, electric organ and Hammond organ are synonyms defined as:

electric organ and Hammond organ: (music) an electronic simulation of a pipe organ

Other synonyms of electric organ include electronic organ, organ.

electric organ (noun)	Hammond organ (noun)
(music) an electronic simulation of a pipe organ	(music) an electronic simulation of a pipe organ