We also have info about completing your online order , vacuum tube basics , power tube matching , and our Perfect Pair numbering system. Our phones are staffed from 9AM to 5PM Eastern Time, Monday to Friday. We can't accept returns that don't have an authorization, are past 90 days, or are returned improperly.
All prices are in U.S. funds.
Canadian orders will be converted to Canadian dollars at the current exchange rate when we process the order. If you order two or more pairs, we ship matched quartets. Tubes that are sold as matched pairs are clearly identified. All other tubes can be purchased one at a time. If you would like to purchase a single power tube, just mention this in the Comments of your order.