Remember there are only 5 companies making power tubes at the present......so no matter who you buy from, the tubes are coming from one of these:
1. Sovtek from New Sensor Factory in Russia (Mesa relabled, Electro Harmonix relabled, and some Groove Tubes relabled)
2. Svetlana from the New Sensor Xpo Pul Factory in Saratov, Russia (Svetlana brand, reissued Tung-Sol, reissued Mullard and the reissued Genelex Gold Lion)
3. S.E.D. Winged =C= from the Sevetlana Electronics Division Factory in St. Petersburg, Russia
4. JJ Electronics in Slovakia (All JJ Electronics brand tubes)
5. Shuguang in China (Ruby relabled, Sino relabled, and some Groove Tubes relabled)