Here is a nice trio of 1965 Sylvania 12AU7A tubes. Tubes have black box plates, 2 micas, copper rods, and square D getters. One tube has full green logo with 65 45 82 date code. The other 2 tubes have partial logos with the same date code.
Tubes test 85/85, 85/85, 83/80 and 84/84. Most new 12AU7s test between 85 and 90 on my Sencore tester, where 70 is the minimum ‘good’ reading. Tubes were negative for shorts and grid leakage, and passed the life test.
Asking price is $25 plus shipping. Payment is by PayPal.
