Up for sale here is this vintage Amperex 12AU7 made in Holland tube. This has short gray ribbed plates and a halo getter, and is from the 1960s. It has the top glas seams and the "Amperex flash" on startup.

I tested this on my calibrated B&K 747B tube tester, and it tested at 61/62, with no shorts or grid emissions, on a scale of 0-120, where 65 is minimum good and most 12AU7s test between 40 and 75. 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 $5, and international is $18, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

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