For what it's worth, the shooting script for The Wrath of Khan
capitalizes the word "Chambers." Uhura says:
"They say their Chambers coil is shorting their COMM system."
So it looks like it is indeed a proper noun--an eponym.
(I note that the late make-up wizard Mr. John Chambers created Mister Spock's pointed ears for "The Cage" back in 1964. This looks to be a Trek
shout out to him.)