No type 6A7 Cunningham radio audio amplifier vacuum tubes valves tested ST 6A7G
Tested on Triplett tube tester for shorts and leaks as well.
No type 6A7 radio audio amplifier engraved vacuum 2 tubes valves tested ST 6A7G
Engraved base, tube tests Price is for all tubes pictured.
No type 6A7 Raytheon radio audio amplifier vacuum 2 tubes valves tested ST 6A7G
Price is for all tubes pictured. Tested on Triplett tube tester for shorts and leaks as well.
No type 6A7 Tung-Sol radio audio amplifier vacuum 4 tubes valves tested ST 6A7G
Price is for all tubes pictured. Tested on Triplett tube tester for shorts and leaks as well.