Raytheon 6SN7GTB vacuum tubes

For your consideration I have a superb matched pair of Raytheon (Baldwin select) 6SN7GTB with identical 1960 production codes of: "P28060-17C". Parallel gray plates with top "O" getters. Word is that tube sold to Baldwin were factory matched and held to a higher testing standard than normal tubes. I cant verify this but my experience has been that the sections on the Baldwin tubes seem more tightly matched than the norm. These tubes look superb and test at or very near typical NOS levels. By reputation an excellent GTB! Low noise and microphonics pair. No Schiit products please!


TEST RESULTS: 2750/2550 and 2600/2500 gm (Triplett 3444...minimum 1700/1700 gm). 


I bought these an other tubes from a client that tried these tubes for several hours and bought these as claimed NOS from another seller. This other seller had these tubes marked as a perfect match across all 4 sections. I dont think you can do better than these at my asking price.


Tubes will be extremely well packed and shipped immediately following verification of payment. Free U.S. shipping and P.P. fees are included in my asking price.