Sylvania etc. Matched Pair (2) 6DJ8 tNOS AT1000 TESTED Vacuum Tubes ECC88 dual triode 1965-1972

This listing is for a Matched (10% in GM) Pair (2) of 6DJ8 ECC88 dual triode vacuum tubes in the standard tube shape. They have a B9A 9DE noval 9-pin base, grey plate, and top halo getter. Labels in stock include Sylvania, Westinghouse, Raytheon. Some of our stock is re-labeled or marked with the OEM of GE, Zenith. If you're looking for a particular brand, please message right as you order - we pack and ship quickly!

Most are late 1960s to early 1970s era JAN 6DJ8 from Sylvania.

These tubes have been selected to match one another for optimal performance! Matching is based on plate current for power tubes, voltage drop for rectifiers, and transconductance (Gm) for other tubes.

Your tubes have 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 transconductance for each section must measure between 10000 uMhos and 15000 uMhos, consistent with original 1965 RCA, Western Electric, Sylvania, GE, and/or Tung-Sol datasheet specifications for new tubes of this type. The tubes must also show no shorts, show a gas current less than 1.5 mA, and a heater-to-cathode leakage of less than 10 microamps (10 uA). The tubes 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 tNOS or Used Good 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