RCA 6JN6 Vacuum Tube Valve NOS NIB Amperex 5U9 LCF201 These three milspec GE 12SG7

These three milspec GE 12SG7 / JAN-CG-12SG7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

This pressing has very-light to light surface noise audible in quiet passages

It measured 58/50 where minimum (65%) is 40/40 and 100% is 62/62

This is a mid-60s

The dynamic range and Mu readings

RCA 6JN6 Vacuum Tube Valve NOS NIB Amperex 5U9 LCF201 These three milspec GE 12SG7This new old stock, new in box RCA 6JN6 tube 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 TO $250 IN