Vintage RCA Vacuum Tube, VT-139/VR150-30. Used, sold “AS-IS”. (My Dad did antique TV/radio repair. The tubes listed here and in my other listings are what is left. I have no way of testing the tubes; if a tube didn’t work, I doubthe would have kept it.) (Box in photo is the box the tube was found in.) Shipped USPS First Class Mail.