RCA etc. ONE (1) 1626 Ham Triode tNOS AT1000 TESTED Vacuum Tube JAN VT137 Audio 1939-1966

This listing is for one (1) 1626 Ham Triode VT137 vacuum tube in the ST (Coke bottle) tube shape. It has a micanol low-loss octal base, black plate, and bottom D getter. Labels in stock include RCA, Sylvania, Hytron. Some of our stock is re-labeled or marked with the OEM of Senco Radio. If you're looking for a particular brand, please message right as you order - we pack and ship quickly!

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 16 mA and 24 mA AND transconductance must measure between 1600 uMhos and 2400 uMhos, consistent with original 1939 RCA, Western Electric, 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 2 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!

OPTIONS (use offer feature in Reverb):

Want a regular white box? $1 extra per tube
Want a tube that's packed in its original box? $3 extra per tube
Want the test results recorded on your box, too? $3 extra per tube
Want two tubes that match one another within 5% for GM? $5 extra per tube