Sylvania Number Type 30 #30 Vacuum Tube Engraved Base ST Shoulder Shape NOS-Testing 6W4 Black Plate new in box GE 6AU6

new in box GE 6AU6 / 6136 tested to spec on our Paul Hart-calibrated TV7/U

Plate current measured 20

These tubes have mica snubbers for increased stability and lowered microphonics

coke-bottle-shape glass envelopes and terrific flashing

This new-looking Baird Atomic GS10C/S CV2325 Dekatron counting tube looks new

Sylvania Number Type 30 #30 Vacuum Tube Engraved Base ST Shoulder Shape NOS-Testing 6W4 Black Plate new in box GE 6AU6This new old stock testing engraved base Sylvania number type #30 tube tested 31 on our Paul Hart calibrated TV7 U where minimum is 23 and 100% is 35. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO