[Thursday] Wireless Telegraphy and Telophony by Massie and Underhill

[Arzoo623 WebRight]

Underhill has a Rhode Island connection to.  He was chief electrical engineer of the Varley Duplex Magnet Company of Providence from 1900 to 1904.
> 
> http://www.rhodeislandradio.org/varley.shtml
> 
> Len
> 
> Sent from my iPhone
> 
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