An advanced variometer system Authors Wim Toutenhoofd The City College of the City University of New York Richard Ball Keywords: Design, Testing Abstract ....one of the authors (W. T.) decided to buy and electric variometer foe his Ka-6... This variometer was found to function extremely satisfactorily. Author Biography Wim Toutenhoofd, The City College of the City University of New York http://www.sci.ccny.cuny.edu/~hindman/sumvitae.pdf Downloads PDF Published 2017-12-19 Issue Vol. 12 (1972) Section Articles