National Union NU 6F6 6F6G Vacuum Tube ST Shoulder Shape NOS-Testing 12AX7 Enhanced Cooling: yes

Enhanced Cooling: yes

This is a Dutch auction for GE-MANUFACTURED gray plate 35W4s

steel support rods and gray plates

new in box US-made milspec / industrial 6AL5 / 5726 / 6097 / JHY-6AL5W tubes tested to spec on our Paul Hart-calibrated TV7/U

WE HAVE HAD A DOZEN OR SO LESS-THAN-FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE WE REFUSED TO EITHER ISSUE A REFUND FOR A TUBE THAT WENT BAD AFTER IT HAD BEEN USED OR A BUYER DID NOT LOOK AT THE PICTURES AND/OR READ A DESCRIPTION THOROUGHLY

National Union NU 6F6 6F6G Vacuum Tube ST Shoulder Shape NOS-Testing 12AX7 Enhanced Cooling: yesThis NOS testing National Union 6F6G output tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 76 where minimum (65%) is 50 and 100% is 77. 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