RED PRINT ON THE BLACK BASE OF THE VALVES IS WORN IN PLACES. THESE TUBES TESTED AT 100% STRONG READINGS ON MY B&K 747 + HICKOK TV-7 TUBE TESTERS. LONG DARK GREY ANODE PLATES. TESTED FOR GAS AND SHORTS.
RED PRINT ON THE BLACK BASE OF THE VALVES IS WORN IN PLACES. THESE TUBES TESTED AT 100% STRONG READINGS ON MY B&K 747 + HICKOK TV-7 TUBE TESTERS. LONG DARK GREY ANODE PLATES. TESTED FOR GAS AND SHORTS.