Pricing:

All prices are in U.S. funds and we offer free shipping in the lower US 48. If you are in Alaska or Hawaii please contact us prior to placing an order so we can determine whether your order qualifies for free shipping. At this time the online tube store can only process orders for customers in the US. If you are outside the US and wish to purchase tubes please contact us before placing an order and we will try our best to accommodate you.

California Residents:

Orders from customers in CA will be charged 7.75% sales tax

Tube Inventory:

Our entire tube inventory is listed below. For your shopping convenience you can use the navigation sidebar to filter our tube inventory

Tube Data:

Information on tube testing, matching, and grading can be found here

Roger A. Modjeski and the RAM Computer Tube Tester Santa Barbara, CA, circa 1981.