Matched Pair RCA 6AK5 6J1 6J2 Vacuum Tubes November 14 2025 These tubes have acid-etched codes

These tubes have acid-etched codes and designations as well as silk-screened 68-26 188-5 67-50 production run/provenance codes

I am playing them in one my Radio Craftsman RC2 mono blocks as I write with Iggy Pop's "Raw Power" -- the closest I get to Death Metal -- and they sound excellent

new in box matched pair of GE 6BL7GTA dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

MOST FORMS OF SHIPPING -- EXCEPT MEDIA MAIL -- ARE AUTOMATICALLY INSURED UP TO $100

Transconductance measured 24

Matched Pair RCA 6AK5 6J1 6J2 Vacuum Tubes November 14 2025 These tubes have acid-etched codesThis matched pair of RCA 6AK5 tubes was tested on our Paul Hart calibrated TV7 U. They measured 27 and 28 where minimum (65%) is 22 and 100% is 40. I am playing them in my Mini Mite 2013 as I write and they sound excellent. 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.