RCA 12AH7 12AH7GT VT-207 Vacuum Tubes Hytron Solid Gray new in box GE 25Z5

new in box GE 25Z5 tube tested to spec on our Paul Hart-calibrated TV7/U

210 5213 and no provenance/date codes

Tube One measured 50/50 while Tube Two measured 49/54 where minimum (65%) is 25/25 and 100% is 38

37 and44 where minimum (65%) is 25

RCA 12AH7 12AH7GT VT-207 Vacuum Tubes Hytron Solid Gray new in box GE 25Z5This RCA 12AH7GT VT 207 tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 64 68 where minimum (65%) is 50 50 and 100% is 77 77. 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