Matched Pair General Electric GE 12AV7 Vacuum Tubes NOS NIB

Matched Pair General Electric GE 12AV7 Vacuum Tubes NOS NIBThis matched pair of new old stock, new in box GE dual triodes was tested on Transconductance measured 70 70 for Tube One and 72 72 for Tube Two. (Minimum (65%) is 33. 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

These thirteen US-made 5T8 tubes tested to spec on our Paul Hart-calibrated TV7/U

GM-Delco-BRANDED 6AX8 tubes tested to spec on our Paul Hart-calibrated TV7/U

stellar flashing

dimpled-sheet getters and two additional support rods per tube for increased rigidity and lowered microphonics

Transconductance measured 68 for Tube One and 78 for Tube Two where minimum (65%) is 40 and 100% is 62

Tube One measured 42 in its triode section where minimum (65%) is 25 and 100% is 39

This Toshiba-MANUFACTURED

This RCA 6HJ5 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box US-made 6KU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

They have shoulder / ST / Coke-bottle bottles and dimpled-sheet getters

Transconductance measured 44 and 44 where minimum (65%) is 35

new in box Sylvania 25W4GT tubes tested to spec on our Paul Hart-calibrated TV7/U