Matsushita 7AU7 Gold Pin Vacuum Tube Valve NOS-Testing Gebraucht Tray OG2 new in box RCA 6HS5

new in box RCA 6HS5 tested to spec on our Paul Hart-calibrated TV7/U

They have an extra mica spacer for vibration suppression

The spine is in fine shape with no loose pages

great flashing and 63-48 188-5 and 64-13 188-5 factory/date codes

new in box RCA 6LN8 / LCf80 tubes tested to spec on our Paul Hart-calibrated TV7/U

Matsushita 7AU7 Gold Pin Vacuum Tube Valve NOS-Testing Gebraucht Tray OG2 new in box RCA 6HS5This Matsushita MANUFACTURED, Realistic Lifetime BRANDED, gold pin 7AU7 dual triode was tested on our TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured an almost perfectly balanced 76 77 where minimum (65%) is 56 56. I have played it in my Schiit Vali 2 headphone amplifier and it sounded great. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE