Here I am selling remaindered vacuum tube stock from a major tube importer that ceased trading around fifteen years ago. 

This listing is for a pair of China made 6550A vacuum tubes.  Nice coke bottle style glass with gold printing. NOS.  

I will also include an identical tube which has silver printing as a spare.  

(Likely the gold printed tubes were those that tested best after production.  I have never seen these tubes before and they may have been samples sent to the supplier I am clearing out to solicit future orders)

These have no boxes but will be packed safely for post.

I have just the one lot of 3 tubes available.

Checkout my other listing for more vintage and modern NOS tubes.