Standard Instrument Corp. model 85 tube tester. No longer working on old radios so, letting go of my test equipment. This unit works well and looks very good. Tests 7-pin miniature, 8-pin octal and locktal, 9-pin miniature and nuvistor tubes. Has pin straightening sockets for 7 & 9-pin miniature tubes. Complete with good settings chart for hundreds of tube types. Very portable, not big and bulky like other testers so easily stored away when not in use. Asking $100.00 shipped CONUS. Payment by PayPal or USPS money order. Contact me at the e-mail below or PM here.