Dateca. 2010s
MediumGlass, alkaline and lithium ion batteries, plastic, metal
Donor credit lineDonated by the U.S. Navy
Object number2017.76.2.2
Institutional Credit LineCourtesy of the New Bedford Whaling Museum
DescriptionThis is a SM-975/976 Smart Modem made by Teledyne Benthos. It is an underwater acoustic modem using for subsea real-time communication. Its electronics are within a vacuum sealed glass sphere, which is nested in the yellow two-piece "hardhat."On View
On viewca. 2010s
Chris Electronics
circa 1970
circa 1970

