Electronics technician (United States Navy)
The United States Navy job rating of electronics technician (ET) is a designation given by the Bureau of Naval Personnel (BUPERS) to enlisted members who satisfactorily complete initial Electronics Technician "A" school training.
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USS Abraham Lincoln (CVN-72).
An Electronics Technician (ET) Petty Officer Third Class repairs a circuit board in the 2M shop aboard the amphibious transport dock ship USS San Antonio
An Electronics Technician (ET) Seaman receiving a certificate upon graduating from ET 'A' School.
Operations specialist (United States Navy)
Operations Specialist is a United States Navy and United States Coast Guard occupational rating. It is a sea duty-intensive rating in the Navy while most of Coast Guard OS's are at ashore Command Centers.
Rating insignia
Operations specialists at work