Here is a pair of 6B4G tubes in their boxes. They were made in Holland. They test very strong on a calibrated TV7 tester they test 69 & 67  with a minimum of 38 .  The tubes are Guaranteed to test good when they arrive. I have been selling tubes for over 30 years and see my positive feedback.

I am in my late-70s and realize it is time to do some serious thinning of my collection. Therefore for the next year I will list 100s of antique radios, audio tubes, tube amplifiers, radio parts, and radio tubes, so bookmark my username stonevintageradio and check in each week. For more information on radios, crystal sets, or tubes, as well as more radios or tubes for sale, visit my website StoneVintageRadio.  Also, check my other auction items here on Ebay. I happily ship worldwide.

SHIPPING/HANDLING RATE: Use Shipping Calculator for Quotes or fixed rate listed in the item description. All items are shipped F.O.B., Deer River, MN, USA--meaning that the sellers responsibility ends when the item has been shipped. If you wish insurance let us know at the time of the sale and we will add in the extra costs. This item/s is sold on a non-returnable basis. This Agreement is governed by and interpreted under the laws of the state of Texas without exception.