The Pendulum is a science fiction fanzine by Bill Venable.
The first issue appeared in January 1952. Three issues followed, including issue 2.2, so altogether four issues, but counted as three.
The Pendulum was a member of "Fanvariety Enterprises", an affiliation of fan publishers put together by Max Keasler and Bill Venable. It included such publications as Max Keasler's Opus, Norman Browne's Vanations, Harlan Ellison's Science Fantasy Bulletin, Dave English's Fantasias, Nan Gerding and Bob Farnham's The Chigger Patch of Fandom, Norbert Hirschhorn's Tyrann, Ian MacAuley's Cosmag, Joel Nydahl's Vega, and Starlanes by Nan Gerding and Orma McCormick.