Tungsram ONE (1) 6V6GT Beam Power tNOS AT1000 TESTED Vacuum Tube greyglass premium 6V6 Audio 1950-1960

This listing is for one (1) 6V6GT Beam Power 6V6 vacuum tube in the straight-walled glass tube shape. It has a black bakelite octal base, grey or black glass from a coating used as an RF shield in early tubes, black plate, and bottom getter.

Made in England.

Your tube has been fully tested on a computer-regulated, USA-made Amplitrex AT1000 on Fixed Bias setting with like new, NOS results (tNOS). Here's what that means: to qualify for this listing, several stringent conditions must be met: The plate current must measure between 36 mA and 54 mA AND transconductance must measure between 3280 uMhos and 4920 uMhos, consistent with original 1950 RCA, Sylvania, GE, and/or Tung-Sol datasheet specifications for new tubes of this type. The tube must also show no shorts, show a gas current less than 4.5 mA, and a heater-to-cathode leakage of less than 10 microamps (10 uA). The tube might have mechanical wear or have the label rubbed off - these are very old! Used-testing tubes are available in a separate listing at a significant discount. Every tube you receive from Sound By Doc is guaranteed against failure for 60 days after purchase, an industry extreme!

These photos are not stock photos. You are looking at the actual tube you will receive. Serial Number 6V6-39.