TUBES : 5 NATIONAL UNION 45 TRIODES #H21

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TUBES : 5 NATIONAL UNION 45 TRIODES #H21 Prev Stop Play Next This is a set of 4 NATIONAL UNION 45 ST triodes. They tested at 104, 87, 102, 101, and 62 with 47 being the minimum allowable on my TV7 tube tester. We test all our tubes on a calibrated TV-7U or Sencore tube testers. Some large transmitting tubes are tested on custom built testers or actual amplifiers. Some audio output tubes are tested with a match maker and I will list the IP current as well as the mutual conductance. All my used tubes have been well tested (sometimes twice). I only sell tubes that test strong and have a good life, I will not sell any marginal tubes. When I sell a lot of tubes I do not always list test results, but I will usually leave the test tag on them, these numbers are for reference only and not in any electrical units. All tubes come with a 10 day money back guarantee that they test good and are use able. They will also be extremely well packed. WE DO NOT ACCEPT PAYPAL. We accept Credit cards . Please contact us if you have any questions. Shipping can be calculated using the shipping calculator. We can combine shipping on most tubes. Just ask. OVERSEAS BUYERS: Please contact us for Shipping/insurance for overseas. Since USPS has eliminated surface and parcel post airmail, small items may be combined and put in a flat rate box. contact me read more

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