Four Sylvania 5814A tubes with testing information on the side of each box. Your testing system may give different results; this is normal and will not be a valid cause for a refund. All tubes are sold as is. Please message me if you have any questions or want more photos.
Item Tag: SYLVANIA
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5814A Match Balance 2 Tubes Triple Mica New (New Old Stock) 1Year Warranty 12AU7
Reference tube is tested first then the tube listed for sale.
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5814A Matched Pair Vacuum Tubes Sylvania Grey Plate Hickok Tested
Experience the reliability and quality of Sylvania with these 5814A vacuum tubes, Hickok tested to ensure top performance.
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Vacuum Tube SYLVANIA JHS 5814A [12AU7] – NOS – TESTED **FREE USA SHIPPING
JHS 5814A [12AU7]. By SYLVANIA. ALL SOLD AS-IS. make this clear.
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2 SYLVANIA Gray Plate O Getter JAN 5814A Tubes, Maxi-Preamp II Tested NOS SM1356
Gain (NOS Value=17 mu) 17.0 mu 17.6 mu. Gain (NOS Value=17 mu) 17.8 mu 17.5 mu. Tested on a Hi End Maxi-Preamp II tester for Gain (Mu), Transconductance (Gm), and Noise (dB).
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Sylvania Gold Brand GB-5814A 5814 Gold Pin Vacuum Tubes Lot Of 5 Amplitrex Strg
All tested using an Amplitrex AT1000 tube tester with the following results (as photographed): Tube 1- 80/95% ip 86/95% gm Tube 2- 81/87% ip 86/95% gm Tube 3- 83/78% ip 90/86% gm Tube 4- 97/91% ip 99/98% gm Tube 5- 89/83% ip 93/90% gm
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Pair (2) vintage 1960s Sylvania Baldwin 12AU7A vacuum tubes – TV-7 test as NOS
This listing is for a Pair (2) of vintage 1960s Sylvania Baldwin 12AU7A vacuum tubes. Long grey plates with top halo getters. They are used but the pair you will receive will test above minimum new spec (86/86) on my TV-7. Readings will be provided for each tube in the shipping box (sorry I don’t have time to provide this in advance). Also tested for shorts and gas. And I popped each in an amp and they sound great. As you may know, organ tubes were selected for their low noise floor and Baldwin got some of the best. Guaranteed good. Returns accepted. No boxes. Thanks!