SOLD Up for consideration is a pair of 1950's Sylvania 12AX7 tubes with short plates and square getters. they have mostly intact green lettering and the Sylvania "S" shield. they were tested in my Hickok 6000 tester and came out with flying colors on all tests. In particular, They tested at 1600/1600 and 1550/1550. Each tube is perfectly balanced and both are within 50 Mhos. of one another. This is an ideal pair. They saw light service in organ use. Only $35.00 shipped and Pay Pal-ed in the Continental United States.
