Matched Pair Unitron 6AK5 5654 6J1 6J2 Vacuum Tubes NOS NIB RCA Steel Plates 72 and 88 where minimum

72 and 88 where minimum (65%) is 33 and 100% is 50

60 and 60 where minimum (65%) is 40

new in box Mullard-MANUFACTURED

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

Matched Pair Unitron 6AK5 5654 6J1 6J2 Vacuum Tubes NOS NIB RCA Steel Plates 72 and 88 where minimumThis new old stock, new in box (For Tube One) matched pair of Unitron 6AK5 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One (Unitron 5654 LABELED, likely Tung Sol MANUFACTURED) measured 31 while Tube Two (no silkscreening 6AK5 LABELED, likely Tung Sol MANUFACTURED) measured 33 where minimum (65%) is 22. Both tubes are the same on the inside with