Three (3) 12AX7A ECC83 RCA vintage vacuum tubes, made in USA,

all are grey ribbed plates, top O getter,

all same date codes FA (Dec 1974), tubes tests: 90, 90, 90, 90 % 

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.