Raytheon 6SL7GT Round Plate Vacuum Tube Amplitrex Tested Strong

RCA JAN 6SL7GT Vacuum Tube Gray Plate Foil Getter TV-7 Tested Strong

3 Smoked RCA 6SN7GT tubes bottom D Getter. Amplitrex tested. 1951

Matched date codes Smoked Glass RCA 6SN7GT tubes. Amplitrex tested. 1948

RCA 6SL7GT Clear Glass Vacuum Tube TV7 Tested Strong

GE 6SL7GT Silver Plate Side Getter Made in USA Amplitrex Tested NOS

RCA Gray Glass 6SL7 Vacuum Tube Amplitrex Tested 87/87% Gm Taped!

2 Pair Matched date codes RCA 6SN7GT tubes. Amplitrex tested. Circa 1945