Westinghouse Black Plate 7AU7 Vacuum Tube Valve NOS NIB For Your Schiit Audio Vali 2 ECC83 ArtSound This lot of three Sylvania

This lot of three Sylvania 12BR7 tubes tested to spec on our Paul Hart-calibrated TV7/U

This GE-MANUFACTURED

This book -- and its dust jacket -- is in very good condition

I am playing them in my Sound Craftsmen RC-2 monoblocks (as an "excellent" 6SN7 substitute according to Antique Electronic Supply's "Tube Substitution Guidebook") with "Hanson Conducts Ives

It comes with a box

Westinghouse Black Plate 7AU7 Vacuum Tube Valve NOS NIB For Your Schiit Audio Vali 2 ECC83 ArtSound This lot of three SylvaniaThis Westinghouse black plate 7AU7 tube tested to spec on our Paul Hart calibrated TV7 U. I am listening to it with Pink Floyd's "Obscured By Clouds" and it sounds great in my Schiit Audio Vali 2 headphone amplifier, allowing the listener to focus on every particular aspect of this album's vocalists and arrangements. Dynamic range is excellent as this album goes from ethereal to raucous and back. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S