Four Quad 12AU7AECC82 Sylvania Audio Receiver Vacuum Tubes Madein the USA17mmgray pinched plates, two spacers, copper rods, halo wire getter frames and topgetter flashesPleasereview the photos for more detail. Excellent strong balanced test results forGm: 2.11 / 2.11, 2.35 / 2.36, 2.6 / 2.45 and 2.45 / 2.65 For Gm, 1.3 is the ~60% reject point No shorts. For reference we used a Triplett 3444ATester. Estimateddelivery within the USA is from 3 to 7 business ...days.Ourstandard service is USPS 1st class.Wecombine shipping when applicable.Please contact us with any questions