2 x 5814A (12AU7) RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester. NIB = boxes may be tattered. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.
Item Tag: 5814A
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2 NOS NIB Matched Sylvania GB 5814A Audio Tubes
These are getting scarce and are a high end tube used by most of the professionals. Great for any a udio amplifier. These tubes are what audiophile enthusiasts are looking for. Th ese tubes were tested in my Military Hickok Cardmatic to make sure these were perfect.
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Lot of 4 Sylvania JAN 5814A Electron Tube – Tested
Lot of 4 Sylvania JAN 5814A Electron Tubes. Condition is used. Tubes have tested on an Accurate Instruments Model 157. Each tube we sell is guaranteed. If you have any issues with these tubes, please contact me BEFORE opening a return in eBay and I will do my best to work with you. Ships quickly.
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SYLVANIA Vacuum Tube Model 5814A Type 5814A MPN 5814A Made in USA x 5
The SYLVANIA Vacuum Tube Model 5814A Type 5814A MPN 5814A is a vintage electronic component made in the USA. This vacuum tube, designed by SYLVANIA, is a sought-after item for vintage audio and video enthusiasts. With a total of five tubes available, this product is ideal for those looking to restore or repair vintage electronic equipment that requires this specific model of vacuum tube. Its authenticity and quality construction make it a valuable addition to any vintage electronics collection.
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2 x 5814A (12AU7) RCA Tubes*Super Strong Matched*Black-O*MEATBALL*NOS_NIB* #R1
2 x 5814A (12AU7) RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester. NIB = boxes may be tattered. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.
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2 General Electric JG 5814A aka 12AU7 Vacuum Tubes Vintage Audio Twin Triodes
The 5814A is a high-reliability version of the popular 12AU7 twin triode. One is a 3-mica version. 2 General Electric JG-5814A Vacuum Tubes. Hickok TV-7D/U tests nd triode sections 110 and 112 – min.
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Mullard 5814A 12AU7 Sleeve 4 NOS, 1 Dud
This is a sleeve of 5 NOS Mullard 5814A/12AU7A tubes. One tube lost its vacuum and is a dud, but is included anyway. Of the other four, two are black plates and two are gray plates. All are triple mica with “Mullard” and “Made in USA” printed on the glass. TV-7 test data is as follows (left to right in the photo): Tube 1: dudTube 2:86 86Tube 3:72 82Tube 4:96 100Tube 5:84 88 A reading of 86 would be new/nominal for a 12AU7 on a TV-7, so these are all measuring excellently, save for one of the triodes on tube #3.
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Pair Tested Sylvania JAN 5814A / LONG PLATE / O GETTER
Nice pair with halo getters and same year code. Both tested as pictured. I will package these properly and ship them promptly.