Matched Pair General Electric GE 6SL7 6SL7GT Vacuum Tubes NOS NIB Milspec NIB and if it is

and if it is

sheet getters

new in box RCA-MANUFACTURED

The performance is excellent and heart-felt

new in box Philco type 79 tube tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE 6SL7 6SL7GT Vacuum Tubes NOS NIB Milspec NIB and if it isThis matched pair of new old stock, new in box (For Tube One) GE 6SL7GT dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 45 38 while Tube Two measured 42 41 where minimum (65%) is 32 32 49 49. They have steel plates; steel support rods; 59 43 188 5 and 5 48 188 5 date provenance codes; solid top mica spacers; side harp getters; tall bases; medium bottles and