Up for sale here is this set of 2 used vintage GE 12AU7 vacuum tubes. These have close 1954/1955 date codes and have long gray plates and top horseshoe getters. They have a little bit of vintage dust on them. These were tested on an NRI-70 tube tester by the previous owner--you can see the test results in the pictures. I am not familiar with the NRI-70, but these did test great and will work great 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!