Hickok 533a tube tester / Tested and working, will need calibration

Description

Comes as seen
includes lid to box. one clamp cable, 2 replaceable sockets and operating instructions
tube chart in good shape, reads and move well
I use this exact model to test the tubes I sell,
I tested a handfull of NOS tubes and it was reading well
this unit has not been calibrated since 1969 - so will need calibrating, and maybe some normal service
shows some age but should clean up well