- Back
-
Title: Replica of W. Siemens' electro-dynamic microphone, 1877 [Go to resource]
Description: Replica of W. Siemens' electro-dynamic microphone, 1877 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1958-222 Go to resource More Like this...
[Edit] - Back