NOS (New Old Stock)

Closely matched Gm as tested on Hickok 752A. Tested 600, 625, 675 &725. Min is 4004 tubes w..

$199.99 USD

Daystrom/GE tube pair. Tested 600 & 625 on Hickok 752A. Minimum is 300 Both tubes have..

$59.99 USD

Tested new on a Hickok 752A. Emission result 925/950. Minimum is 650/650.Black plate tube, made..

$29.99 USD

NOS vacuum tube, made in the West Germany. Gray plate tube with silver pins.Hickok 752A tested: Pent..

$34.99 USD

NOS vacuum tube, made in the USA. Tall gray plate with halo getter.Tested 1000 on Hickok 752A, where..

$11.99 USD

Tested new on a Hickok 752A. Emission result 975/925. Minimum is 650/650.Black plate tube, made..

$24.99 USD

This used tube was made in Japan and tested on a Hickok 752A.The test result is 800 µmhos, whic..

$11.99 USD

NOS brown base vacuum tube with black plate made by SylvaniaTested 750 on Hickok 752A, where minimum..

$49.99 USD

Tested 625/650 & 650/650 µmhos on a Hickok 752A. Minimum is 400 Date code is 1-04 pro..

$169.99 USD

Tested 600/625 µmhos on a Hickok 752A. Minimum is 400 "12" engraved on the base. ..

$49.99 USD

Reliable, Ruggedized, Longlife tubes made to Western Electric specs. 40 Volt 2C51 / 396A. Perfectly ..

$32.99 USD

Two closely matched pairs as tested on a Hickok 752A in original boxes Readings are: 6000/70..

$29.99 USD

Reliable, Ruggedized, Longlife tubes made to Western Electric specs. Closely matched at 4000 / ..

$32.99 USD

Used tube with strong test result. Tested 1225/1250 on Hickok 752A. Minimum is 770/770 &n..

$34.99 USD

Perfectly balanced at 550/550 µmhos on a Hickok 752A where minimum is 400 Black Plate..

$119.99 USD