Sylvania 6SF7 Vacuum Tube NOS NIB Scarabus Stereo LP These tubes are the equivalent

These tubes are the equivalent of the Chinese / Russian 6J1 and 6J2

6 milliamps with a transconductance of 3060 micromhos while Tube Two measured 24

47 and 54 where minimum (65%) is 36 and 100% is 55

Bottles: medium height

Sylvania 6SF7 Vacuum Tube NOS NIB Scarabus Stereo LP These tubes are the equivalentThis Sylvania 6SF7 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 VALUE. IF AN ITEM IS