(2) RCA 6SN7GTB Vacuum Tubes Black Plates Side D Getters Test NOS Amplitrex

(2) RCA 6SC7 Vacuum Tubes Test NOS Amplitrex

(4) RCA 6J5 Metal Vacuum Radio Tubes Tested NOS Hickok 539C Test Results stated

6SG7 NOS RCA AA5 radio audio metal vacuum 2 tubes valves amplifier tested 6SG7GT

50L6GT NOS RCA 1950s AA5 radio audio amplifier vacuum tubes 2 valve tested 50L6G

5 NOS NIB RCA 12AU6 Radio,Vacuum Tubes

6SA7 NOS RCA AA5 radio audio metal vacuum 2 tubes valves amplifier tested 6SA7GT

3 NOS RCA 6EZ5 Beam power Audio Tubes. Amplitrex Tested