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Tested 1225/1500 on Hickok 752A. Minimum good is 625/625 Tube has smooth grey plates and ..
$22.99 USD
Tested 350/325 on Hickok 752A where minimum is 200. The 752A is noted for giving a low reading ..
$39.99 USD
Used tubes from same audio channel, made in Germany. Results from test on Hickok 752A: 7000/725..
$44.99 USD
Tested 6750 mhos on Hickok 752A, where the minimum new is 4750Made in West Germany and has halo gett..
$28.99 USD
This vacuum tube tested new at 1250/1300 µmhos on Hickok 752AMinimum is 475. It has short ribbed gre..
$29.99 USD
Tested 325/325 on Hickok 752A where minimum is 200. The 752A is noted for giving a low reading ..
$29.99 USD
Tested using Hickok 752A ..
$14.99 USD
May be a 6 volt Western Electric 310A and a direct drop in for a WE 428ATested 750 on Hickok 7..
$129.99 USD
Tested strong at 350/350 on Hickok 752A, minimum is 275. The 752A gives low readingsfor the 12A..
$44.99 USD
NOS Westinghouse Premium tube. Test reading is 1125 mhos on Hickok 752A, where the minimum new ..
$34.99 USD
Used tube, tested 2000/3000 on Hickok 752A. Minimum is 1600/1600 ..
$19.99 USD
This is a New Old Stock (NOS) Beam Power Tube made in the USA. Test reading is 600 mhos on Hickok 75..
$79.99 USD
Uprated 6BQ5 tubes Tested 825 & 850 µmhos on Hickok 752A. Minimum is 575 Made in Canada, l..
$79.99 USD
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