Vintage Tube Amp

2 VINTAGE GREAT TESTING GE 5AR4/GZ34 TUBES. ONE GREAT BRITAIN TUBE ONE USA TUBE. THE USA TUBE HAS COPPER GRID POSTS. BOTH WERE TESTED ON A JACKSON 648 TESTER AND THEY BOTH TESTED FANTASTIC. ABOUT THE SAME ON BOTH PLATES. TEST LIKE NEW OLD STOCK TUBES, BUT THEY ARE USED. NO LEAKAGE OR SHORTS. READINGS ARE VERY ACCURATE.