Matched Quad RCA VT-90 JRC-6H6 VT90 6H6 Vacuum Tubes Milspec 12ED5 NOS NIB It measured where minimum (65%)

It measured where minimum (65%) is and 100% is

beefy black plates: side O getters

64 and 64 where minimum (65%) is 50 and 100% is 77

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

Matched Quad RCA VT-90 JRC-6H6 VT90 6H6 Vacuum Tubes Milspec 12ED5 NOS NIB It measured where minimum (65%)These matched quad of RCA milspec JRC 6H6 6H6 VT 90 6H6 tubes was tested on our Paul Hart calibrated TV7 U. They measured (from left to right) 51 50, 51 51, 51 52 and and 52 50 Minimum (65%) is 40 40 and 100% is 62 62. They are World War Two vintage and all have US Army Signal Corp SC 278 A codes. 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