Pr GE 6L6GC Vintage Power Tubes 1960s, USA, Ex Sound, Test Strong/Balanced, Musical

Pr of the excellent sounding vintage 1960s GE(Marked RCA-but are clearly GE tubes-relabeling was common pratice in the 1960s/70s) 6L6GC power tubes, USA, test strong and balanced. ,  They both test over 870 on my B&K tester where 640 is minimum good.They have the incomparable vintage USA GE design craftsmanship, reliability and performance.  The Phenolic guide pins on the bottom of the tube for aligning the tubes in the socket is broken off. This was very typical of vintage tubes. With care, you can align the tubes correctly in the sockets and they will work perfectly. I did place a black magic marker on the side of the tube to help align the tubes in the sockets. Vintage GE tubes were used by many vintage tube amp manufacturers as original equipment tubes. Sunn, Magnatone, Heathkit, Fisher, Scott, SG, Rivera, Etc. Vintage tubes sound better, last longer and are made better than anything manufactured today. They sound very nice, open, detailed dynamic, involving, extended, spacious, transparent, smooth, natural and musical. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good listening, SonnY :)