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TOM VALES



Hi All,
    Tom Vales, a member of the list and the TCBA, helped with the
following very fine article:

HOW EWEN AND PURCELL DISCOVERED THE 21 cm INTERSTELLAR HYDROGEN LINE
BY Karl D. Stephan
in IEEE Antennas and Propagation, Volume 41, No. 1, February 1999,
pages 7 to 16

    There is a picture of the 3C22 "lighthouse" tube.  Would this work
for a HFTTC?