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Closely matched pair of NOS tubes, tested 1000/825 µmhos and 1025/825 µmhos on Hickok 752A..
$14.99 USD
Tested 1000 and 1025 µmhos
respectively on a Hickok 752A where minimum is 475 ..
$19.99 USD
Tested 900 and 875 µmhos respectively on a Hickok 752A where minimum is 500 ..
$144.95 USD
Tested 800 and 900 µmhos respectively on a Hickok 752A where minimum is 500 ..
$144.99 USD
Tested 825/875 mhos on Hickok 752A, minimum new is 475Made in England with gray plates and top halo ..
$34.99 USD
Tube #1 tested 2900 where minimum is 1350 and 1200/1300 where minimum is 800/800Tube #2 tested 3000 ..
$39.99 USD
This pair of used tubes tested 825 & 925 µmhos respectively on a Hickok 752A Minimum is 425..
$19.99 USD
Reliable, Ruggedized, Longlife tubes made to Western Electric specs. 40 Volt 2C51 / 396A. Perfectly ..
$32.99 USD
Reliable, Ruggedized, Longlife tubes made to Western Electric specs. Closely matched at 4000 / ..
$32.99 USD
Closely matched pair of NOS tubes branded Philips with Mullard, Blackburn code (B1L1).Tested 1025/11..
$24.99 USD
This is a pair of NOS vacuum tubes designated "RB" and made in the USA.Tested on a Hickok Model 752A..
$89.99 USD
Tube #1 tested 300/300 Tube #2 tested 325/325 on Hickok 752A, minimum is 200. The 752A gives a ..
$39.99 USD
These are closely matched NOS vacuum tubes. Tested 725/750 min 500and 625//725 min 475 µmhos respect..
$9.99 USD
Used tubes from same audio channel, made in Germany. Results from test on Hickok 752A: 7000/725..
$44.99 USD
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