Tektronix 506 Mainframe W/Oscilloscope, Multi-Meter, Digital Counter Modules

Description

This Tektronix TM 506 mainframe has three modules installed and one empty module bay. The installed Modules are DC503 Universal Counter, a SC502 oscilloscope module, and a DM 501A Digital Multimeter Module. There is wear and tear plus scratches from use. There is a manual printed from the internet and some other paperwork.
This is an estate sale find. I want to make it clear that I know absolutely nothing about how this device should operate or work. I plugged it in and All modules lit up and seemed to be in working order. With that being said, I am selling this “as is, for parts or repair.”
Please carefully examine the photos and design on this device is condition for yourself. Fast, fast shipping to continental United States. Alaska, Hawaii and Puerto Rico will be extra. Payment is due immediately upon purchase.