9 RCA 6CK3 6CL3 Vacuum Tubes NOS NIB Lot Of Nine Engraved Bases new in box US-made 6W6GT

new in box US-made 6W6GT tubes tested to spec on our Paul Hart-calibrated TV7/U

6 milliamps' plate current while Tube Two drew 18

I am playing them as I write in on of my Sound Craftsmen RC-2 monoblock amplifiers with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

Tube One's centering pin is missing and it has been marked for safe and easy insertion

They are dead quiet when the preamp is muted and have excellent frequency response

9 RCA 6CK3 6CL3 Vacuum Tubes NOS NIB Lot Of Nine Engraved Bases new in box US-made 6W6GTThese nine new old stock, new in box RCA 6CK3 6CL3 tubes tested to spec on our Paul Hart calibrated TV7 U. 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