The minimum is equal to 65% of the life of the tube.
Item Tag: Vacuum Tube
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VINTAGE AMPEREX 6922 GOLD PIN TUBE / E88CC ECC88 6DJ8
Tube tested from : ECC88 position by Amplitrex 1000.
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(1) Amperex / Bugle Boy ECC85 / 6AQ8 Dual Triode Tube – Heerlen, Netherlands NOS
From a recent tube collection that was stored away for many years and recently acquired side triangle = Heerlen, Netherlands please see up close of codes. “9” =1959 or 1969 “ K” = November Maxi-preamp 2 tester Test great and closely matched triodes: Gain 48.4 / 49.9 (3.1 % delta) Gm 2894 / 2815 (2.8% delta) Pass noise, pass microphonics Beautiful and NOS
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Philips ECG 5879 Vacuum Tubes Lot of 5 in Original Boxes! Read!
The boxes appear to have never been opened until we opened and checked them.
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NOS Philips Holland 6BQ7A ECC180 Matched Pair 1960s Hickok 799 Tested
Tube type: 6BQ7A / ECC180. Each order receives two tubes selected as a closely matched pair and tested on my Hickok 799 tube tester. Tester used: Hickok 799. Each pair will be closely matched based on the Hickok 799 test readings.
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Pair 2 NORELCO PHILIPS JAN-3C24 / VT-204 Tubes MATHING DATE CODES 1944 ARMY NAVY
1 MATCHING Pair = 2 NORELCO PHILIPS JAN-3C24 / VT-204 Tubes with MATHING DATE CODES MAY 3 1944 US ARMY US NAVY These are both New Old Stock in original boxes one box is in good shape the other one appears to have been chewed on by a mouse or something see the pictures they are exactly what you will receive
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Rare Philips Amperex 12AX7 ECC83 SELECTED Tube mC2 Tube D-Getter 12ax7a B339
Circa 1958 mC2 tube with the 17mm long grey plates and huge foil strip D-getter. One of the best 12AX7 ECC83 tubes you can buy! Great used tube testing strong with years of life still to enjoy. Platinum BALANCED triodes just as you would expect in one of these yellow tip SELECTED tubes.