Out of 28 tubes only two were discarded so the chances are it is good but it is listed as untested.
(2) Siemens Mesa Engineering STR 450 EL34 Duet Guitar Power Tubes NOS Amplitrex
4 x 6L6GC Matched Quad Power Valves - JJ Brand NEW TESTED
Matched Quad Brimar Foreign 5881 6L6GC Valves Tubes NOS
Matched Pair Brimar Foreign 5881 6L6GC Valves Tubes NOS
Vintage CBS Tubes Caddy 35 Tube Lot Sylvania GE Tung-Sol 8SN7GTB 6BX7GT 6CG7...
Matched Set of 5 NOS Sylvania 12AX7A,ECC83,7025 All Test STRONG! Same Date Code
