Quad JAN-12AV7 Tubes NOS Bulk Sylvania Black Plates. These came from a large lot of surplus tubes. They have black plates, halos, and have matching date codes of 69-11 (2) and 68-05(2). They will be packed well. My tube tester is a SECO 107A Dynamic Mutual Conductance Tester. Good is at 60, but all tubes listed as NOS or NIB will have tested over 100, have no shorts, leaks or gas. (We do not proofread any ads submitted by members) |
cheryl-mcdowell@desmoines-classifieds.com (Cheryl Mcdowell)
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