Pair (2) 6AS7GA Sylvania vintage vacuum tubes, made in USA,

both are black smooth plates, triple mica, side O getter, 

both same date codes DK ECM tubes test:

82, 82 %

84, 86 %

Price is for all tubes pictured.

We test all tubes we sell! We will combine shipping! Checkout my other tubes!

Tubes are tested for emission, as well as for shorts, life test and grid leakage on calibrated Sencore Mighty Mite tube tester, on scale 1-120, good quality on my Sencore starts at 70.