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Tested new with completely matched sections with readings of 3200/3200 µmhos on Hickok 752..
$24.99 USD
Tested new with readings of 2800/3100 µmhos on Hickok 752AMinimum good is 1600/1600. Tube ..
$17.99 USD
RCA Fat Bottle Gray Plate Vacuum Tube. Made in USA7591 in 9-T9 bulb and the compactron equivale..
$49.99 USD
NOS tube. Balanced test result of 3000/3000 on Hickok 752A. Minimum is 1600/1600 Yellow Q.C. pa..
$44.99 USD
Tested 900/900 µmhos on Hickok 752A where minimum is 800/800..
$9.99 USD
Tube #1 tested 300/300 Tube #2 tested 325/325 on Hickok 752A, minimum is 200. The 752A gives a ..
$39.99 USD
Tested 4800/4600 µmhos on Hickok 752A. Minimum is 1900/1900 µmhos. ..
$9.99 USD
Tested 375/400 on Hickok 752A where minimum is 200. The 752A is noted for giving a low reading ..
$19.99 USD
Tested using Hickok 752A ..
$19.99 USD
These are closely matched NOS vacuum tubes. Tested 725/750 min 500and 625//725 min 475 µmhos respect..
$9.99 USD
Tested NOS and balanced at 3400/3400 on Hickok 752A. Minimum is 1600/1600 Sylvania Internationa..
$59.99 USD
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
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