RCA 15BD11 Vacuum Tube NOS NIB

RCA 15BD11 Vacuum Tube NOS NIBThis new old stock, new in box RCA 15BD11 tube tested to spec on our Hickok 800 tube tester. 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

new in box RCA 7AF7 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

This was originally a package that contained five and two have been used

Bottom: smooth

It is dead quiet when the preamp is muted and has excellent frequency response and dynamics even though it tests poorly

6SL7s can sub for 6SN7s in some amps but I do not recommend experimenting as they have very-different bias voltages

These tubes have black and silver bottles

Tube One measured 66/71 while Tube Two measured 68/67

INTRUSIVE AND DRACONONIAN GERMAN PACKAGING REGULATIONS -- AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM -- WE WILL NO LONGER SHIP TO GERMAN ADDRESSES FROM JUNE 1

new in box Cunningham 14F7 tube tested to spec on our Paul Hart-calibrated TV7/U

The spine is in fine shape and the book has no loose pages

perfectly-balanced 70/70 where minimum (65%) is 50/50 and 100% is 77/77