Up for sale here is this extremely rare vintage RCA JRC 12AX7 tube, dated 1950 and Made in USA. This has long black plates and a top angled D getter. This is an incredibly early 12AX7.

I tested this on my calibrated B&K 747B tube tester, and it tested at 66/74, with no shorts or grid emissions, on a scale of 0-120 where 65 is minimum good. This is a nice tube and is guaranteed to 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!