Typed draft of “Acoustical energy and watts” by Frederick Lanchester, November 1932
LAN/1/10/19
Item
November 1932
On the reverse of pages 1-4 is first part of an unfinished article “The Gramophone and its milliwatts” (22 November 1932) which seems to be the basis for LAN/1/10/17.
6pp.
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