OTK Electro-Harmonix CV2492 6DJ8 E88CC Gold Pin Low Noise Saucer Getter Vacuum Tube Valve For Your Schiit 6P5G Black Plates This Groove Tube GT-ECC83-S /

This Groove Tube GT-ECC83-S / ECC83 / 12AX7 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

These four US-made

This new old stock-testing Silvertone round plate type 56 triode was tested on our Paul Hart-calibrated TV7 for shorts

There are only two connecting pins and you may have to find/fabricate one if you need a third

OTK Electro-Harmonix CV2492 6DJ8 E88CC Gold Pin Low Noise Saucer Getter Vacuum Tube Valve For Your Schiit 6P5G Black Plates This Groove Tube GT-ECC83-S /This gold pin, milspec, low noise E88CC CV2492 6DJ8 ECC88 OTK dual triode was tested on our Paul Hart modified TV7 U for shorts, gas and transconductance. There were no shorts or gas. 6DJ8s are notoriously hard to test on most testers and Paul added ferrite rings to ameliorate this problem. It measured 64 68 where minimum (65%) is 62 62. Its silkscreening is excellent and appears to have been done for Mullard. It was manufactured in the Soviet Union