2 Sylvania 5899 JHS-5899 Vacuum Tubes Milspec NOS NIB Lot Of Two 2nd Quarter BW23 new in box US-made 6CY5

new in box US-made 6CY5 tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 76/76 and Tube Two measured 79/77 where minimum (65%) is 50/50

52/34 and 56/47 where minimum (65%) is 40/45 and 100% is 62/69

I have played them in my Sound Craftsmen RC-2 monoblock amplifiers with adapters (not included) and they sounded outstanding

These seven new old stock

2 Sylvania 5899 JHS-5899 Vacuum Tubes Milspec NOS NIB Lot Of Two 2nd Quarter BW23 new in box US-made 6CY5There are two new old stock, new in box milspec Sylvania JHS 5977 tubes in this lot. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF