[NJARC] Audio horn restoration

[Alex Magoun]

For the HiFi experts and aficionados:
http://blog.sciencemuseum.org.uk/insight/2014/04/24/in-search-of-perfect-sound-introducing-britains-largest-horn-loudspeaker/

Alex
~~~
Alexander B. Magoun, Ph.D., Outreach Historian
IEEE History Center
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