RCA 6N7 Vacuum Tube Vintage USA Octal Dual Triode Tested

6N7 Ken-Rad Dual Triode Power Amplifier Vacuum Tube - TESTED 80

SYLVANIA 7N7 DUAL TRIODE AMPLIFIER VACUUM TUBE FOR OLD RADIOS BOXED TESTED.

6Q7 KEN-RAD Vacuum Tube ~ Tested ~ Dual Diode -Triode

RCA 6CY7 HI-LOW MU DUAL TRIODE AMPLIFIER VACUUM TUBE TV,AMP USE BOXED TESTED

6N7 Ken-Rad radio audio metal amplifier vacuum 4 tubes valves tested 6N7GT VT-96

6F5 Ken-Rad High-Mu Triode Vacuum Tube - TESTED

6K7 Ken-Rad Triple-Grid Super-Control Amplifier Metal Vacuum Tube - TESTED