You are offerdingon a VINTAGE HICKOK MODEL 532 DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER INCLUDINGCLEAR B&W PRINT OF OPERATING INSTRUCTIONS.This tester is good working order and fair cosmetic shape (i.e., case is inpoor shape - handle is shaky and it\'s missing a hinge - see pics). This tube tester is used to test and measuremutual conductance values of vacuum tubes used in radio receivers andtransmitting tubes delivering <25 watts of power. This tester is designed to provide eitherREPLACE-GOOD readings of mutual conductance values in micromhos. There is a provision made for locating shortsand leakages between tube elements - a sensitive noise test is also provided.. Please see photos and e-mail with anyquestions & happy offerding!

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