I have a Unidyne, as it is spelled on the tag, model number, 556, dynamic microphone. It looks to be fairly old, and is not working at the present time. The serial number on it is; E2019.
It could be as old as 1942, or as young as 1963. The serial number does not identify the year.
Related Product Types
Telephone: (800) 516-2525
Fax: (847) 600-8686
Ask a Question