[Milsurplus] A good book on the crystal effort in WW2

[Dennis Monticelli]

Gene,
Someone who enjoys that article as much as you do would find the
following book interesting as it goes into much more history and detail.

"Crystal Clear"  "The Struggle for Reliable Communications Technology in
WW2"
By Richard J Thomphson Jr
c2007 IEEE Press

Dennis AE6C
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