Hickok 533A Dynamic mutual conductance tube tester

Description

Hickok 533A Dynamic mutual conductance tube tester. The tester works and tests tubes comparable to the tv7-bu that I use all the time.  I do not know when if ever it had calibration done. The tester is in great shape inside no damage to sockets knobs or scratches on the face. Comes with a   copy of the manual and test data. The roll chart  works. It also comes with a roll chart that was replaced at one time. The case has some of the black covering worn. The worst of it is on the bottom as shown. It does not look as if it had a lot of use as some do. It does look like it has been moved around over the years from the looks of the outside. Please be sure you want this if you bid. It is too large to be sending around for shipping. I have too many testers and time to get rid of a few. I also have a beautiful 600a listed.