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50 years of Amateur Radio Innovation -- Coming October 1! -- This guided tour of more than 400 legendary radios from 1930 to 1980, depicts the “golden age” of American radio technology.

The Story of the Enigma: History, Technology and Deciphering -- Now Shipping! -- The ultimate reference on the Enigma!

The Secret Wireless War -- New 2007 Printing. Now Shipping! -- The Story of MI6 Communications--1939-1945 (World War II). This is an extraordinary story that includes hams among those patriots that undoubtedly helped the allied war effort.

The Story of the Queen Mary and W6RO -- Now Shipping! -- DVD. A story about W6RO and its impact on the Amateur Radio Service through its operation aboard the Queen Mary.

Perera's Telegraph Collectors Guide -- Now Shipping! -- The most complete source of information for all those interested in telegraph keys from beginner to avid collector.

December 2007 QST Feedback

In “Are You Using the Right Fuse?” [Oct 2007, p 32], there is an error in the sidebar “Calculating Voltage Drop.” In the formula at the bottom of the first column, the right parenthesis should be moved to after “2k” so the formula reads (2RW × l  × 0.001 + 2k) × I = VD.
tnx Wilton Helm, WT6C



Page last modified: 10:36 AM, 05 Nov 2007 ET
Page author: qst@arrl.org
Copyright © 2007, American Radio Relay League, Inc. All Rights Reserved.