Sent me a couple of "tested" 6v6 tubes, they blew my amp TWICE, and when i explained the situation to them they told me that i had to pay for the return shipping, that they would refund me for it once they receive the tubes, so i sent the tubes, and they not only didnt refund me for the shipping back to the store, but they also never refund me for the original shipping either, so i lost my shipping money after their non tested shorted tubes blew my amp TWICE, and i had to buy two resistors out of my own money and wait for them to arrive in the mail (good thing i have some electronic skills otherwise it would have costed me a trip to the amp tech, which would have costed me more than the tubes themselves). One month lather im without a running amp and shorter of money, GREAT DOING BUSINESS WITH YOU GUYS! Eat a turd.