Micronta Tube Tester Model No.: 22-012 Radio Shack Div of Tandy Co. Working vintage with original box, User Manual and Tube Data Chart. Factory fresh, hard to find, mint condition - see pictures

Tested with 6L6GC, 12AX7, 12AU7, 6AQ5, and a few others. More up-to-date, corrected tube listing pages are also included.

Size: 12 x 10 x 8.5 in - Double boxed

Weight: 4 lbs 4.20 oz - boxed + 2 lbs second box