Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% high testing, near NOS values 1. 66.5/44 PC 83.5 2. 66/44 PC 84.5 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.

GEC, British MadeRare Triple Halo Getter KT88 Valve TubeFully Tested on Avo VCM 163..Ia 81 - Gm 7.2New Old Stock, Supplied in White Box

Here is a fantastic PAIR of GEC KT88 power tubes!! These are vintage U.K. made originals- NOT current production Russian copies!! Triple O getters. On our military TV-7 tester, with 44 being the baseline for good (65%) these are super strong at 78 and 78 -well over 100% --like new tubes!! No shorts or gas. The getter flash is very strong- with no signs of thermal stress!! These will be VERY securely packed for shipment anywhere (there are shipping exceptions). Shipping cost in USA via USPS Priority Mail with signature confirmation (required) will be $15.00. Outside the USA we will only ship via USPS Priority Mail International because of value. We have shipped hundreds of tubes worldwide and know how to pack so they will not arrive damaged. We have another pair listed that test at 71 and 72 (still a bit over 100%)- if they havent sold already. These move fast!! Remember, you get a PAIR at this price!! NOTE: Tubes are guaranteed to be as described. However, as these can fail at any time without warning, we do not offer return privileges

Here is a fantastic PAIR of GEC KT88 power tubes!! These are vintage U.K. made originals- NOT current production Russian copies!! Triple O getters. On our military TV-7 tester, with 44 being the baseline for good (65%) these measure 72 and 71 -a bit over 100%. No shorts or gas. The getter flash is very strong- with no signs of thermal stress!! These will be VERY securely packed for shipment anywhere (there are shipping exceptions). Shipping cost in USA via USPS Priority Mail with signature confirmation (required) will be $12.00. Outside the USA we will only ship via USPS Priority Mail International because of value. We have shipped hundreds of tubes worldwide and know how to pack so they will not arrive damaged. NOTE: Tubes are guaranteed to be as described. However, as these can fail at any time without warning, we do not offer return privileges

Up for auction is a set of 22 KtT88 Tube Dampers. Used but in like-new condition.

This Valve/Tube has been tested on a Hickok 750 Tube tester The tester measures in MICROMHOS A new Value for a KT88 Tube is 7000 Micromhos This Tube is very strong at 9500 Micromhos. Tested for gas and shorts. Bid with confidence. Thanks for looking

This Valve/Tube has been tested on a Hickok 750 Tube tester The tester measures in MICROMHOS A new Value for a KT88 Tube is 7000 Micromhos This Tube is very strong at 10,000 Micromhos. Tested for gas and shorts.(PLEASE NOTE, ALL MARKINGS HAVE BEEN RUBBED OFF) Bid with confidence. Thanks for looking

This Valve/Tube has been tested on a Hickok 750 Tube tester The tester measures in MICROMHOS A new Value for a KT88 Tube is 7000 Micromhos This Tube is very strong at 9750 Micromhos. Tested for gas and shorts. Bid with confidence. Thanks for looking

VERY RARE STRONG GEC KT88BLACK PLATE TRIPLE GETTER NOS WITH ORIGINAL BOX TESTED ON MY AVO VCM163 VALUES -TUBE 1 - Ia 81 gm 8.0 100% = Ia 57 gm 8.0

VERY RARE STRONG GEC KT88BLACK PLATE TRIPLE GETTER NOS WITH ORIGINAL BOX TESTED ON MY AVO VCM163 VALUES -TUBE 1 - Ia 102 gm 8.3 100% = Ia 57 gm 8.0

5pcs 8Pin Vacuum Tube Socket Base Octal for KT66 KT88 6SL7 6SN7 6V6 5AR4/GZ34 Features: The 8-Pin Tube Socket is designed to securely hold your tube in place, ensuring a stable . Made of durable ABS material, this tube socket is wear-resistant for long-lasting use. This 8-pin tube socket is suitable for wide ranges of applications. It is for KT66 KT88 6SL7 6SN7 6V6 5AR4/GZ34 5R4GY 5U4G 6AS7G 6B4G 6BL7GT 6F6 6J5 6J7 6L6 6SJ7 274B 348A 350B 421A 5691,6P3P 6P6P 6n8p 6n9p 5Z3P 5Z2P 6j8p EL34 KT66 KT88 6V6 6n5p 5pcs 8Pin Vacuum Tube Socket Base Octal; Specifications: Material:ABS Option Type:GZS8-B1;GZS8-B1-G Diameter:Approx.2.6cm/1.02in Mounting screw Hole Distance: 38mm (center to center) Package Includes: 5x8Pin Vacuum Tube Socket note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

DescriptionAuthenticity: 100% AUTHENTIC! If you have any question about the condition, accessories, or anything about the product,Please feel free to message us. We are glad to answer all your concerns. ShippingDHL, Fedex Fastshipping3-10 business days after shipment(Tracking number + Insurance.)PaymentPlease give me the payment within 3days from the date of bid.About UsWe sell our items on other websites and in our retail stores in Japan at the same time.If the item was sold out before your purchase, your order will be cancelled and a full refund will be issued immediately. International Buyers - Please Note:Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you.

DescriptionAuthenticity: 100% AUTHENTIC! If you have any question about the condition, accessories, or anything about the product,Please feel free to message us. We are glad to answer all your concerns. ShippingDHL, Fedex Fastshipping3-10 business days after shipment(Tracking number + Insurance.)PaymentPlease give me the payment within 3days from the date of bid.About UsWe sell our items on other websites and in our retail stores in Japan at the same time.If the item was sold out before your purchase, your order will be cancelled and a full refund will be issued immediately. International Buyers - Please Note:Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you.

Unknown Vacuum Tube (not KT88 KT66). Not sure what this tube is. It is untested and sold as seen.

I have owned this amp for almost two years but not currently using it in my set up, I have two other valve amps. This is the most powerful at 60RMS per channel. Even the 25RMS per channel valve amps are ample power for majority of tower speakers. Amp is in good condition, 240v power supply. YAQIN MC-100B KT88 Vacuum Tube Hi-end Integrated Power Amplifier 110v-240v. Product Description: Features: User-selected amplifier modes, UT (Ultra linear) mode provides greater output power and TR (Triode) mode does smooth and rich sound. User-selected pure post-stage and integrated modes; Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency; Output transformers manufactured with Japanese silicon steel sheet and oxygen-free enameled copper and high quality lacquer, which offer a wide dynamic range at full rated output; Independent power supply for each channel. Applies special potentiometer as volume controller with low noise, and durable; Beautiful aluminum and steel heavy duty chassis, panel and bezels; Provides user adjustable bias, test points and tool to refine bias of the output tubes. Technical Specifications: Input Power110V - 240V AVAILABLE ? pls let us know your voltage choice ) Output Power Ultra-linear: 2x 60W (8 ohm), Triode state: 2x 30W (8 ohm) TubeKT88 x 4; 6N8P x 4; 12AX7B x 2 Input sensitivityIntegrated mode 0.25V pure post-stage mode 0.6V Frequency5Hz~70KHz (-2dB) Signal/Noise Ratio?85dB A Weight Harmonic Distortion<0.5% Input impedance20Kohm Consumption320W Load impedance8ohm or 4ohm Signal Inputs Level>300mv Audio InputTAPE,DVD,CD,TUNER Audio Output2 groups Input impedance20Kohm ColorGold Body & Dark Green Power Supply Don't miss your chance, just get it now!!! Dimensions: Gross Weight (kg): 29.5kg Net Weight (kg): 25.5kg Machine Size (mm): 465 × 396 × 212 mm Outsourcing Dimensions (mm): 610 × 510 × 365 mm

Sylvania 6550 Tetrode (KT88) Valve Tube Made In USA Used Tests Good See photos for condition. Tests good on Taylor Model 45C valve tester. Mutual conductance reading Gm 7.5 Tested as a KT88, as I dont have the exact input data for a 6550. 100% KT88 factory data in Taylor manual at Gm 11.0 Filament continuity, and mutual conductance test readings photographed respectively. UK shipping with MyHermes Tracked or Royal Mail. International shipping with Royal Mail International Tracked. I will combine postage on multiple valve orders. See my other listings!

VERY RARE STRONG MATCHED PAIR OF GEC TT21 BLACK PLATE DATED TO 1970 AND 1973 SUPERB STRONG PAIR TESTED ON MY AVO VCM163 VALUES -TUBE 1 - Ia 92 gm 7.5TUBE 2 - Ia 98 gm 8.2 100% = Ia 80 gm 7.0

=°=Clic ?Mes autres ventes, all my listings to save on shipping !NO shipping outside the EU for this listing, except combined shipping with another purchase from my shop, then shipping for this item will be free, as for EU, >> due to high shipping & international ebay fees <<2x Brown OCTAL TUBE KEYWAY REPLACEMENT Allows Replacement key-way on your octal tube if the Guide Pin has broken off . Just clean the remainder of the broken guide pin from the base with a needle-nose pliers and insert this one, thus the pins will line up correctly = Safe & Simple It worth it on your valuable octal tube !>>> voir photos, please see photos !! Réduction sur la livraison dachats groupés en FRANCE: même prix de port, le plus élevé, quel que soit le nombre dobjets achetés, alors consultez mes autres ventes, MERCI. Envoi soigné garanti - Nhésitez pas à me contacter pour tout renseignement avant denchérir. idem en cas de problème ou derreur dans la description: communiquez, Errare humanum est... *****foreign buyers please note***** I always package my items with care to help insure they will arrive to you safelyYES, I really do combine shipping if you win more than one auction, to save you money on shipping: Please ask all questions before bidding and I will be happy to answer If a problem arises contact me and Ill try to fix the problem, Errare humanum est.....

THIS TUBE IS IN NEW CONDITION . TESTED VERY GOOD AND IS IN BEAUTIFUL SHAPE . MADE BY SYLVANIA BRANDED RCA YOU GET THE TUBE YOU SEE IN THE PHOTOS FOR THE PRICE THIS TUBE IS MADE WITH GOLD COLORED WELDED PLATES & DOUBLE OO PAN GETTERS GUARANTEED TO SOUND FANTASTIC .

Raro Shoko Fatto Kt100 Matched Quad Può Essere Usato IN Theway As Kt88 NecessaryQuesto foglio informativo sul prodotto è stato originariamente stilato in lingua inglese. Si prega di consultare appresso una traduzione automatica dello stesso in lingua italiani. Per ogni domanda, si invita cortesemente a contattarci.PagamentoSiate certi che il nostro negozio offre una varietà di metodi di pagamento.Si prega di pagare entro 5 giorni dal termine dellasta.Chi siamoCi troviamo in Giappone. Per i prodotti elettrici, controllare il produttore e il prodotto e convertirli alla tensione di ciascun paese. Prevediamo di spedire tramite FedEx o DHL. Vi preghiamo di contattarci poiché in alcuni casi le spese di spedizione possono essere modificate. È nostro piacere renderti felice proponendoti il ??nostro articolo consigliato.Se hai domande o richieste sugli articoli, non esitare a chiederci.Acquirenti internazionali - Nota:-I dazi doganali, le tasse e le spese non sono inclusi nel prezzo dellarticolo o nelle spese di spedizione. Queste spese sono a carico dellacquirente.-Si prega di verificare con lufficio doganale del proprio paese per determinare quali saranno questi costi aggiuntivi prima dellofferta/acquisto.-Queste spese vengono normalmente riscosse dalla società di spedizione (spedizione) o al momento del ritiro dellarticolo - non confonderle con spese di spedizione aggiuntive.-Non contrassegniamo i valori della merce al di sotto del valore né contrassegniamo gli articoli come - regali - Le normative governative statunitensi e internazionali vietano tale comportamento.]]>Ci troviamo in Giappone. Per i prodotti elettrici, controllare il produttore e il prodotto e convertirli alla tensione di ciascun paese. Prevediamo di spedire tramite FedEx o DHL. Vi preghiamo di contattarci poiché in alcuni casi le spese di spedizione possono essere modificate. -I dazi doganali, le tasse e le spese non sono inclusi nel prezzo dellarticolo o nelle spese di spedizione. Queste spese sono a carico dellacquirente. -Queste spese vengono normalmente riscosse dalla società di spedizione (spedizione) o al momento del ritiro dellarticolo - non confonderle con spese di spedizione aggiuntive. -Non contrassegniamo i valori della merce al di sotto del valore né contrassegniamo gli articoli come - regali - Le normative governative statunitensi e internazionali vietano tale comportam Unit Quantity NA Unit Type NA MPN NA Country Japan Brand No Brand UPC NA Country/Region of Manufacture NA California Prop 65 Warning NA Model NA Type NA

These are certified Matched which lived in my tube amp for about a week (maybe 10 Hours of use ). My tube amp went up for sale coz I came across on a great deal on a high end solid state amp. These were purchased on April 18 of this year from Viva tubes and has one year warranty from date of purchase . I will provide a copy of the receipt for warranty purposes. Will only ship to mainland USA . Tubes are listed locally in the SF Bay Area local listing (CL).

Here is a fantastic PAIR of GEC KT88 power tubes!! These are vintage U.K. made originals- NOT current production Russian copies!! Triple O getters. On our military TV-7 tester, with 44 being the baseline for good (65%) these measure 72 and 71 -a bit over 100%. No shorts or gas. The getter flash is very strong- with no signs of thermal stress!! These will be VERY securely packed for shipment anywhere (there are shipping exceptions). Shipping cost in USA via USPS Priority Mail with signature confirmation (required) will be $12.00. Outside the USA we will only ship via USPS Priority Mail International because of value. We have shipped hundreds of tubes worldwide and know how to pack so they will not arrive damaged. NOTE: Tubes are guaranteed to be as described. However, as these can fail at any time without warning, we do not offer return privileges

100% Authentic! All packages are shipped directly from Japan!Condition DescriptionFeatures and Remarks Designed and produced by Satoru Kobayashi Features / Remarks Vacuum tube used KT88/12BH7A/6N1P Feature / Remarks Body: Dullness of mirror finish, Slight line scratches. Features and Remarks Maintenance has been done at a specialized store in August, 2018. Please Note shipping from Japan. Policy PaymentYou can use various payment methods based on eBay Managed Payments. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.Cancellations & ReturnsCancellation or returns will be accepted only if the item has an obvious problem that was not mentioned in the listing description. If that, please let us know within 3 days you got the item. Buyer is responsible for shipping costs and any charge incurred shipping products back.International BuyersImport duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.