4 VINTAGE NOS NIB GEC KT66 OUTPUT TUBES SAME DATE CODE QUAD RARE

For auction I have a Same Date Code Quad (4) Original GEC Made In England KT66 Output TubesI have had these for quite a few years and never had to use themThey were bought as New Old Stock New In Original BoxesAs stated these are Original Made in England tubes packaged for Canadian General ElectricAs you can see on the boxes The PV code which all 4 tubes has on the brown bases, also on the bases it states Made For CGE (Canadian General Electric)On the glass itself all tubes have the sa...me date code of ZC Z The 4th tube you can make out the C but it is getting faded as these fit tightly in the boxesAll 4 tubes have dual halo bottom gettersAll glass is tight to basesAll guide pins intactIt is very rare to get 4 of these tubes identical, especially New In Original boxesA couple of the boxes are missing flaps do to ageTubes have been tested on my Stark (Hickok) 9-66 Mutual Conductance tester and no shorts or gas detectedUsing the 6L6 setting a new tube reading is 5000 I also tested these on a Jackson 648R Emissions tester which will be the second numberThese testedTube 1 5200 105% emissionsTube 2 5100 107% emissionsTube 3 5100 105% emissionsTube 4 5000 103% emissionsVery strong and close testing quadShipping to Canada - USA will be by PostageOverseas it will be shipped DHL ExpressI no longer ship direct to China, to many problemsAny import duties or taxes is the responsibility of the buyerTube 4 5100

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