NOS (New Old Stock)
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NOS vacuum tube with grey plates and bottom halo getterTested 3400/3400 on Hickok 752A, where minimu..
The factory codes on these tubes are: AAA3 B3J5 AND AAA3 B4I5Made by Mullard in Blackburn, England T..
Closely matched pair of NOS tubes, tested 1000/825 µmhos and 1025/825 µmhos on Hickok 752A..
Pair RCA Fat Bottle Gray Plate NOS Vacuum Tubes7591 in 9-T9 bulb and the compactron equivalent is 78..
Tested 2900/2800 µmhos on a Hickok 752A where minimum is 1600/1600 ..
Tested 800 and 900 µmhos respectively on a Hickok 752A where minimum is 500 ..
New Old Stock (NOS) vacuum tube tested On A Hickok Model 752A Tube Tester.Test reading is 1025, wher..
Tested new and balanced on a Hickok 752A. Emission result 625/625. Minimum is 400/400. Rug..
GE 6SQ7GT Glass Vacuum Tube with Metal BaseAll Tubes Are Tested On A Hickok Model 752A Tube Te..
Tested 350/375 on Hickok 752A where minimum is 200. The 752A is noted for giving a low reading ..
NOS vacuum tube with top halo getter. Balanced test at 925/950 on Hickok 752A, where minimum is..
Tested 2040/2440 on Hickok 752A, where the minimum is 1600/1600Dual Triode passed Leakage Test..
Tested new on a Hickok 752A. Emission result 925/950. Minimum is 650/650.Black plate tube, made..
Tested new on a Hickok 752A. Emission result 975/925. Minimum is 650/650.Black plate tube, made..
NOS brown base vacuum tube with black plate made by SylvaniaTested 750 on Hickok 752A, where minimum..
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