Matched Pair General Electric GE 6SL7 6SL7GT Vacuum Tubes NOS NIB Milspec NIB new in box RCA-MANUFACTURED

new in box RCA-MANUFACTURED

and if it is

46 and 49 respectively

US-made 7C7 tubes in this lot

Matched Pair General Electric GE 6SL7 6SL7GT Vacuum Tubes NOS NIB Milspec NIB new in box RCA-MANUFACTUREDThis 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