Matched Pair Sylvania 6DE4 Vacuum Tube Rectifiers OM2 Tube Two measured 22/2460

Tube Two measured 22/2460

This new old stock-testing RCA black plate 12AU7A dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Sylvania 6GS7 tubes tested to spec on our Paul Hart-calibrated TV7/U

This pressing has moderate surface noise audible in quiet passages and in moderate passages

It measured 48 where minimum (65%) is 36 and 100% is 55

Matched Pair Sylvania 6DE4 Vacuum Tube Rectifiers OM2 Tube Two measured 22/2460This matched pair of Sylvania 6DE4 rectifier tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They measured 73 and 73, respectively, where minimum (65%) is 50 and 100% is 77. They have gray plates; 312 66 38 158 and da EGD provenance date codes, respectively; short bases; side O getters and crenelated, rectangular top and bottom spacers. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S