Tung Sol 6SN7 Round Plate Rare Tubes

One matched pair of Tung Sol round plate 6SN7GT labeled Admiral. One tube has a cracked base, but the base and pins are tight. The crack does not affect the sound and the tube sounds identical to it's match sister. The second tubes has no issues. Rated 7/10 for the cracked base. 9/10 for the second tube. This is matched pair tested on my calibrated Jackson 648S. Test results are 95/95 and 95/95 for each tube. Good is over 50 on the Jackson 648S. Most importantly, the tubes have no leakage which amounts to noise or shorts. I have tried each tube in a DeHavilland Ultra Verve III and they were dead quiet. $375.00 for this pair shipped in CNUS and no Paypal fee. I have a single Tung Sol 6SN7GT/ JAN VT231 round plate tube that tests NOS at 107/107 with no leakage on my calibrated Jackson 648S. Rated 9/10. The tube was dead quiet in my DeHavilland Ultra Verve III. Very low hours. Rated 9/10. $225.00 for the single tube shipped CNUS and no Paypal fee. Paypal or money order accepted. I will ship Priority Mail in USA. International buyers, please email for shipping quote. Fees and shipping included only at my asking price. Check my feedback and buy with confidence. Thank you for your interest!