Mullard 12AX7/ECC83 Long Plate Square Getter Made in England in 1957. Very Rare 17mm Long Plate Square Getter type. Date Code: B7K Made very early in November 1957 in Blackburn England. Fully tested by calibrated Hickok 539C tubes tester with no shorts, leakage or gas. Measurement: 1520/1600 where minimum good value is 875 Spec for new 12AX7 tubes is 1350. Very Strong like NEW. This tube may be never used. Tested in my preamplifier and works perfectly. Sweet & Warm Mullard Long Plate Sound. I will gladly combine shipping. Tubes are fully guaranteed. You may return the item for full refund if not satisfied. Buyer pays for return shipping. |