PERFECT BALANCED PLATES AND EXCELLANT LETTERING!! * 1960 GE 5751Triple MicaGREY Plates O getter TubeTV-7/u Tested! BOGEN AMP Tested - No microphonics Condition Report: ** Tube TESTED AND sounded good in my BOGEM AMP! No microphonics! ** Tested on 6 professional calibrated HICKOK military TV-7/u tube testers!! Number: 5751 Brand on tube: GEActual manufacturer GECountry of manufactureUSADate codes60-13 / 188-20Box type--Plate style: GREYGetter style O GetterGlass styleclear Base style9-pinTest results (measured )38/37 , typical average min tube life left @65% is 32/32 (on a TV-7/u Tube Tester)Be sure to read my return policy and review the shipping guidelines below, and contact me before you purchase if you have any questions. I have over 40 years of experience in many facets of electronics design and repair. Ive been collecting, buying, and selling tubes since the 1980s, and have been an eBay seller since 1998. This is the only seller account I have on eBay and the pictures you see are of the actual tube(s) you’ll receive.Tubes are described, tested, and presented to the best of my ability, subject to the limitations of the equipment that I have available (Hickok Military Professionally calibrated TV-7/u Tube Testers, Sencore, and others..). Test results are likely to vary some between your equipment and mine due to the imprecise nature of 60-year-old consumer-grade test equipment. This tube was tested for noise and microphonics, NON PRESENT and sounded great!Do you have tubes to sell? Contact me with your inventory! *** I WILL COMBINE SHIPPING COSTs ON MY ITEMS FOR SALE - SAVE BIG $$ !!! Tested to be in guaranteed working condition!!!!!!!!!I tested these on a High Quality Professonal Hickok TV-7/U Tester:TUBEs TEST RESULTs: TUBE: 38/37 - {Minimum Rating of 32/32 for TV-7 Testers are equal to 65% of average new ratings.} If you have Questions or Comments contact me on eBay Check out the photos! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! I Combine ShippingBefore You Pay. I accept PayPal and Postal M O. Please see click to enlarge photos for condition and quality.Check out My Other Items For Sale!WILL BE SHIPPED OUT FAST! Before bidding please read my shipping and return policy. I WILL COMBINE SHIPPING COST ON MY ITEMS!!! NOTE: International buyers - THE BUYER IS RESPONSIBLE FOR SHIPPING FEES. INTERNATIONAL BIDS WELCOME. I WONT CHANGE DECLARED VALUE ON CUSTOM FORMS AND INTERNATIONAL BUYERS ARE RESPONSIBLE FOR ALL TAXES, CUSTOM FEES, and additional shipping fees. ANY RETURN WILL BE ACCEPTED BUT BUYER WILL PAY SHIPPING FEES AND I WILL NOT REFUND ANY SHIPPING FEES.*TESTED ON Calibrated HICKOK TV-7 B/U*{Minimum Ratings for TV-7 Testers are equal to 65% of average new ratings.}ALL tubes will be ran through a Daniel Nelson calibrated HICKOK TV-7 B/U for a full mutual conductance test. This is a world class tester that is calibrated by the Hickok doctor. Its test results are dead on and you can buy with confidence. If you want to know what the exact Gm rating of the tube is please message me.

TV-10D Excellent Test. See Below Triodes 1&2 1493/1540 (Minimum 950/950) Characteristics: Dual Triode, Black Plates, White Silkscreen, Extra Support Rods, Triple Micas, Large Square Getter, Very Ruggedized, Minimizes Microphonics. Code 57-?? Week Not Legible There was no box, it might even be a new tube that has lost its box over the years since 1957. Please use the pictures and the test results for your own evaluation. I do combine items when and if possible or practical Having collected ~100,000 tubes since 1955, I just can not remember detailed history of my tubes. However, I can and do test and FULLY GUARANTEE all my tubes ( Including NOS & NIB ) that I offer for auction on eBay. I usually ship immediately upon receipt of payment. Enjoy your bidding! LOCxGUNCD

RCA 5751 vacuum tube tested strong with good balance Tested with a calibrated TV-7D/U tube tester. Calibration by Daniel Nelson. Code: 58-43 NOS/Used: used Construction: short black plate triple mica angled getterGlass: no burn marks Base:-Tested at: 44/44 GMMinimum: 32/32 GMThe minimum is equal to 65% of a new tube. Tested for shorts and gas. 30-day free return. Your items will be packed very well and shipped promptly.We combine shipping on tubes.Always glad to answer any questions.Thanks for looking!