Hickok 6000 Dynamic Mutual Conductance Tube Tester nice w/ all documentation

Description

Here is a Hickok model 6000 tube tester in very nice condition for its age (with one of the smoothest roll charts I’ve used on a Hickok). Besides some rust on the exterior latches and some light dust this unit is very clean. It is performing nicely and was tested with two bogey tubes. For exact repeatable results you may want to calibrate but it is reading pretty accurate as is for an older piece of equipment. The rubber cord is a little stiff as with most of these old Hickok but no cracking or anything like that. The gentleman this belonged to saved every single piece of documentation including the original registration certificate as you can see.