Two, Tung Sol-USA 6J5G tubes with the tall shoulderd glass bulb. These are of ocurse vintage, US made Tung Sol tubes and not the modern day, Russian made re-issue/reproduction Tung Sol tubes. Black, flat plate, silver printed logo bases. The 6J5G tube can be used in applications calling for the 6J5GT and 6J5 tubes. Tested on a Hickok TV-3 military tester that has been calibrated. Firm bases, excellent silvering. Tubes are matched for structure and dynamic gain- test at 3000, 2875, wher...e pass/fail is 1625 micromho. The tubes have the same structure inside and out. One tube is branded and has a date code of "7", June 1942, the other does not have any of the original markings on the base, which would lead me to believe it was wartime surplussed. Many other lots of tubes for sale this week.Shipping is free within the continental US. Elsewhere- exact postage only, no packing fee.