Fiddling with old Hewlett-Packard 606b signal generator

trust me, i know nothing about this beast. i got it free a few years ago and haven't had a cord for it. i opened it up and bypassed the missing cord plug. it has a short cord that plugs into a case back. these were designed to be rack mounted in maybe something like a budcase? i dunno. but they were made to plug into a line filter built into the case if it wasnt rack mounted. so you have a short 2 foot cord with a 3 prong 120v plug. anyway. im pretty sure its not 100% working and i know i saw some signs of abuse or miss use on one of the input boards. anywho.