RCA 6BQ7A/6BZ7/6BS8 Tube, New, Made in USA 1972, 1974

RCA 6BQ7A/6BZ7/6BS8 Tube, New, Made in USA.  These were all made in 1972 or 1974, as date codes are DS and ES.  

They have been tested on a Triplett or Hickok 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 at the top of the GOOD range.
If you need the original box, be sure to let me know before ordering this. Sometimes I will replace a shabby original box with a new, more durable white box for shipping, so if the box matters to you, be sure to let me know so I can include it.
This will be packed safely.
Ships quickly from Mississippi.
I have been selling on eBay for over 25 years, so buy with confidence.