New old stock vintage Sylvania and Philips ECG US made 6111WA tubes. (Both come from the same factory, Philips took it over in 1980). The tubes are new old stock and in military boxes. 6111 is a subminiature 9 pin low gain dual triode with mu ~ 20, similar to ECC82. Offers on this item considered for quantity 50 or more. This item is shipped from Britain, in North America or Asia please allow 2 to 3 weeks for delivery.