Up for sale here is this used vintage Hewlett-Packard-badged Amperex 12AU7 tube, dated 1966. This has short ribbed gray plates and a top halo getter. It has fairly good but not perfect lettering.

I tested this on my calibrated B&K 747B tube tester, and it tested at 76/72, with no shorts or grid emissions, on a scale of 0-120 where 65 is minimum good. This is a nice strong tube and is guaranteed to work well for you. Please see my pictures for details.

US shipping and handling is $7, and international is $21, no matter what quantity you buy. All my small parts are set up for combined shipping--just use the "add to cart" feature, then check out at once to receive the combined shipping discount. If you have any questions, please ask.

I have more tubes and other vintage electronics listed--feel free to take a look!