6AS7G used RCA black plate power output tube. 1951 vintage. The tube test at 110% on both triodes. 68% is minimum good. Perfect balance. I will properly pack the tubes for safe shipment and pay USPS insured postage with tracking number in the US. Same business day shipping. International shipments through US Postal Service International for actual postage cost and selling price on customs forms. 11 ounces packed weight for international.