Tektronix TM-500 Series Rear Interface DataBook 070-2088-02 Nov 1975

A great reference for this type of test and measurement equipment.  Yes, I know you can get a copy online, but there's nothing better than a paper copy....   Good reference for building your own equipment.

As shown in pictures is what you will receive.

Shipped Via USPS Media Mail

As Is, No Returns.