Up for sale here is this set of 2 used GE 7189A vacuum tubes.  I tested them on my B&K 747B tube tester, and they tested at 74 and 35, with no shorts or grid emission, on a scale of 0-120, where 65 is minimum good.  They both look great to me, and I've never had a 7189 tube test this low, so I do not know if my tester didn't like them for some reason or if they're really that bad.  The 74 tube should work fine for you.  The 35-testing tube may not sound good and may not work for you.  Only the 74-testing tube is guaranteed to work well for you.  Please see my pictures for details.

US shipping and handling is $4, and international is $12.  I accept Paypal.  If you have any questions, please ask.

I have a number of other tubes & sockets, collectibles, Magic cards, and vintage electronics listed--feel free to take a look!