6JC6 Tube, Tested Good On Hickok Tester

6JC6 tube, USA.  This listing is for ONE tube.  This will come from a mixed bag of USA tubes, some pre-owned, some new, most of them in white boxes (the original boxes were shabby or missing).  When this listing was written, the brand mix was RCA, Zenith, GE, RCA JAN USN, Westinghouse, etc.  All excellent tubes.  Some of those will probably be sold (no longer available) by the time you see this listing, but I wanted to mention what was in the group so you'll know these are all major name tubes.   This tube has been tested on a Hickok 533A machine.In order to be sold as NOS, it must be new old stock, filament continuity must check good, it must be free of shorts,and read solidly in the GOOD range. If the tube is used, the same checks are made before marking it as good.The sale is for the tube only, the box is included for good measure (if I have it).If the original box shows in the photo, the tube will come in the original box. Expect boxes to show signs of wear and storage. Shabby boxe