Description
(1) Tested Motorola 12K5 Tube. Date Code 5706-1. The 322 EIA code indicates that this tube was made by Tung-Sol for Motorola. The wording is faded but still recognizable as being Motorola branded. Tested on a recently calibrated Hickok TV-10 tester with no shorts with the following results: Gm Test = 2900 micromhos Minimum pass/good = 1900 ~ Please view all 4 photos ~