This is a vintage piece of equipment case is a bit rusty in the fact it takes a minute to closr. The manuals are in the box. What you see is what you get.  After 40 some years my hubby is retiring so we are selling all the parts and equipment we have. All is sold "as is"

This vintage device from Sencore, the Big Mac Universal CRT Tester, is a great addition to any collection. It allows for easy testing and calibration of tubes, making it ideal for those in the business and industrial sector. The device comes with the brand and model of "cr168" and is perfect for those looking for a reliable and efficient tube tester.