[NJARC] "Crystal Clear" Talk at InfoAge

[Mike Feher]

Ray -

This is interesting as a two volume set called "Crystal Clear" was published
by a physician Dr. Maurice Sievers. He came to my house in VA, about 20
years ago, and took numerous photos of early crystal receivers which is the
focus of his books.  Who is the author of this book by the same name? - Mike


 
 
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
 
 

-----Original Message-----
From: njarc-bounces at mailman.qth.net [mailto:njarc-bounces at mailman.qth.net]
On Behalf Of Ray Chase
Sent: Thursday, April 10, 2008 2:07 PM
To: NJARC
Subject: [NJARC] "Crystal Clear" Talk at InfoAge

Visit our web site - See http://www.njarc.org
_______________________________________________
Sunday April 27th @ 2 PM the author of a new book "Crystal Clear" will give
a lecture at InfoAge.  Old-timers may remember the advent of single crystal
control for ham rigs in the 30's and newbies will only be familiar with
today's frequency synthesizers that can make an infinite number of
frequencies from a single crystal; but in-between then and now was WWII &
Korea when multi channel crystal controlled radios were vital to our
national defense and this required the creation of an instant industry to
produce hundreds of millions of precise crystals for frequency control.
Hear how this was done and how a myriad of technical and production problems
were solved.  Anyone involved in the history of radio, military, ham or
otherwise will find this lecture well worth while.  Fort Monmouth was the
center of much of this activity so it is local history as well.  There is no
admission charge and copies of the author signed book will be on sale.  You
should not miss this event.
Ray
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