Two, NEW in box, Sylvania VT-231, JAN-CHS-6SN7GT tubes, wartime manufacture, military issue. Off-white printed logo bases, black, T-plates.  Outstanding sonics. Tested on a Hickok TV-3 military tester that has been calibrated, just to make sure. Firm bases, excellent silvering. Tubes are matched for dynamic gain and structure- test at 3375-3375 and 3250-3250 where pass/fail is 1625 micromho.  They have the same structure inside and out, wartime manufacture. The boxes, as always, are original- these are not the reprinted/computer generated boxes that get described as reproduction boxes that you see here on ebay- with the intent to deceive, making used tubes appear to be new. 

Many other lots of tubes for sale this week.

Shipping is free within the continental US. Elsewhere- exact postage only, no packing feee