VERY HIGH QUALITY VINTAGE RCA JAN CRC 6SN7GT / VT-231 TUBES . ALL FOUR TUBES ARE MADE WITH THE FULL MICAS . THESE BLACK PLATE GREY GLASS TUBES ARE 100% GUARANTEED TO WORK AMAZING FOR YOU IN YOUR AMPLIFIER . EACH TUBE TESTED VERY GOOD WITH CLOSE BALANCED PLATES YOU GET THE 4 TUBES IN THE PICS . FOR THE PRICE . 82,8384,8281,8083,82Return Policy Disclaimer:We want you to be completely satisfied with your purchase. If you are not entirely happy with your collectible items, such as coins and vacuum tubes, you may return them within 30 days of receipt for a refund or exchange.Return Conditions:Items must be returned in the same condition as received, including all accessories and packaging.Buyer is responsible for return shipping costs unless the item is defective or not as described.Please note that collectible items like vacuum tubes have a limited lifespan and may not last forever. We recommend reviewing the item description and condition carefully before purchasing.Contact us before initiating a return to discuss any concerns.Your satisfaction is important to us, and we appreciate your understanding of the unique nature of collectible items!For more information, please refer to eBay’s return policy guidelines.

VERY HIGH QUALITY VINTAGE RCA JAN CRC 6SN7GT / VT-231 TUBES . ALL FOUR TUBES ARE MADE WITH THE FULL MICAS . THESE BLACK PLATE GREY GLASS TUBES ARE 100% GUARANTEED TO WORK AMAZING FOR YOU IN YOUR AMPLIFIER . EACH TUBE TESTED VERY GOOD WITH CLOSE BALANCED PLATES YOU GET THE 4 TUBES IN THE PICS . FOR THE PRICE . 82,8384,8281,8083,82Return Policy Disclaimer:We want you to be completely satisfied with your purchase. If you are not entirely happy with your collectible items, such as coins and vacuum tubes, you may return them within 30 days of receipt for a refund or exchange.Return Conditions:Items must be returned in the same condition as received, including all accessories and packaging.Buyer is responsible for return shipping costs unless the item is defective or not as described.Please note that collectible items like vacuum tubes have a limited lifespan and may not last forever. We recommend reviewing the item description and condition carefully before purchasing.Contact us before initiating a return to discuss any concerns.Your satisfaction is important to us, and we appreciate your understanding of the unique nature of collectible items!For more information, please refer to eBay’s return policy guidelines.

Seltene RCA JAN CRC 6SN7GT / VT-231 / B65 Vacuum Tube / Röhre , top tested! 6SN7GT = 6?8? = VT-231 = B65 = 6SN7 = 6SN7EHTested (see pictures!): 17 mA , new at 9 mA Geprüft / tested on Funke W19 (siehe Bilder!/ see pictures!). Dem Alter entsprechend kann ich keine Garantie auf die Funktion geben, daher wird die Röhre als defekt verkauft / Due to its age, I cannot guarantee functionality, so the tube is being sold as defective.Privatverkauf, der Verkauf erfolgt unter Ausschluss jeglicher Garantie und Gewährleistung, keine Rücknahme und keine Nachverhandlungen.Nach erfolgtem Kauf, innerhalb einer Woche zu bezahlen.Bilder sind Teil der Beschreibung.Weltweiter Versand auf Anfrage.Internationaler Versand innerhalb der EU (Europäische Union ) 16,90 Eur, außerhalb der EU auf Anfrage...Bitte sehen Sie sich auch meine weiteren Artikel an.Worldwide shipping on request. International shipping costs are determined by postal zones.Please ask for shipping price.Bieten sie nicht mit, wenn sie mit den Bedingungen nicht einverstanden sind.Der Versand erfolgt über Hermes.Für die, die einen anderen Versandträger wünschen, bitte vorher eine Anfrage senden bezüglich Versandkosten. Private sale, the sale is to the exclusion of any guarantees and warranties, no returns and no renegotiations. Payment need to be made within one week of purchase. Images are part of the description. Worldwide shipping on request. International shipping in EU (European Union) 16.90 EUR, outside the EU on request... Please also take a look at my other articles. Worldwide shipping on request. International shipping costs are determined by postal zones. Please ask for shipping price. Do not bid if you do not agree to the terms and conditions. Shipping takes place via Hermes. For those who would like a different shipping carrier, please send an inquiry in advance regarding shipping costs

1970/s vintage 6sn7gt 6sn7/vt231/b65 rca Coin base black plate nos nib new. Molti pezzi disponibili 2 x 6sn7gtb nos nib new L inserzione è riferita a 2 valvole L inserzione is for 2. piecePer chi dovesse acquistare l articolo , la spedizione sarà effettuata dal giorno 23 maggio

1970/s vintage 6sn7gt 6sn7/vt231/b65 rca Coin base black plate nos nib new. Molti pezzi disponibili 10 x 6sn7gtb nos nib new L inserzione è riferita a 10 valvole L inserzione is for 10 piecePer chi dovesse acquistare l articolo , la spedizione sarà effettuata dal giorno 23 maggio

1970/s vintage 6sn7gt 6sn7/vt231/b65 rca Coin base black plate nos nib new. Molti pezzi disponibili 2 x 6sn7gtb nos nib new L inserzione è riferita a 2 valvole L inserzione is for 2. piecePer chi dovesse acquistare l articolo , la spedizione sarà effettuata dal giorno 23 maggio

Up for sale is a vintage (USED) RCA JAN CRC 6SN7GT VT-231 Black Plate vacuum tube manufactured in the United States in 1940’s 6SN7GT VT-231 tube. (SC 6135 A) (V3E) Note: selling as used tube does show heavy use please see photos ( tube is cloudy on top) tested on calibrated Heathkit tube tester TT-1 measuring 1375/1300 Microhomos with a minimum R/P of 840 microhomos. Please see photos any questions please ask. Thank you

EXTREMELY RARE TUBES . Made by Tungsol many years ago in the USA BOTH TUBES ARE 100% NEW OLD STOCK UNUSED AND IN MINT CONDITION . BOTH TUBES WORKING PERFECT . 100% GUARANTEED WITH A BEAUTIFUL SOUND . THESE 2 TUBES ARE VERY RARE BEING MADE WITH ROUND PEWTER PLATES THE 6SN7GT TUBE HAS THE TUNGSOL DESIGN OVAL MICAS . 6SL7GT TUBES HAS THE FULL ROUND MICA TWO DIFFERENT TYPES OF TUBES 6SL7GT IS NOT THE SAME AS 6SN7GT The Plates are made with pewter. No they are not Grey plates . Look at the Last 3 Photos of the tube that is upside-down . That tube has grey plates. This tube with grey plates is in the last 3 photos so you can compare it to the tubes with pewter plates . AND No they are NOT Black Plates . Black Plates are Much darker. These Pewter plate tubes Are Extremely rare Both tubes made in the USA Many years ago . Both tubes made with foil getters / Black Glass The One 6SN7GT and the One 6SL7GT tube in the first 6 Photos is what you get for the Price These 2 RCA tubes Were part of a Sample pack of tubes from the Military collection We are selling on ebay Once Again you get the 2 Tubes in the First 6 Photos for the Price Check out the other High quality tubes for sale in My other Listings on Ebay! Listing 1000s of NOS NIB Highest Grade Audio tubes

Description RCA JAN-CRC 6SN7GT / VT-231 Tubes UnUSED[Condition]USED:Unused itemThe red box has no description of the product name and only the RCA mark is printed.VT231 Army No. is printed on the ball inside.Price is for 2 pieces, not a pair. Please note that it is not the same rod. Please refer to the pictures for more details. Please check the photos and dont hesitate to ask any questions about the item !Thank you.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

Matched pair (x2) RCA Grey Glass 6SN7GT / VT-231 Valves/Vacuum Tubes - AVO Tested strong & balanced. In excellent condition. Tested in phono stage for noise, perfectly quiet. One of the best VT-231s with amazing opaqueness and sound stage. Possibly NOS. Tested on a recently calibrated AVO VCM 160 with the following results; IA GMValve 1: A1 9.5 2.8 A2 8.7 2.7Valve 2: A1 9.3 2.7 A2 8.3 2.6 AVO NOS Specs: IA = 9.0 GM = 2.9 No leaks or shorts, solid bases, shiny pins. eBay seller for over 21 years, buy with confidence - see feedback. Valves will be shipped next day, carefully packaged, tracked and insured. Please drop a note with any questions. Shipping happily combined on multiple items. For overseas purchases, please message for a shipping quote before purchasing. Dont use your amp as a circuit breaker, buy tested valves!

RCA, Made in USAJAN CRC 6SN7GT CV1988 VT-231 Grey Glass Valve TubeJAN Military SpecFully Tested on AVO VCM 163100% Book Spec = Ia 9 - Gm 2.9This Valve Tests = Ia 16/12 - Gm 3.7/3.3Used, Supplied in White Box

=°=Clic ?Mes autres ventes, all my listings 6SN7GT RCAcode 809voir photos, see photos !? Best quality :1940s round top mica + ears side micasTested: 84/89 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tube was tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

=°=Clic ?Mes autres ventes, all my listings 6SN7GT RCAcode S3voir photos, see photos !? Best quality :1940s round top mica + ears side micasTested strong : 95/98 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tube was tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

=°= =°=Clic ?Mes autres ventes, all my listings 2x 6SN7GT RCAWhite boxes, code 839 & 809voir photos, see photos !! ? Both 1940s round top mica + ears side micasTested strong matched: 98/101 & 97/97 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tubes were tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

Two (2) 6SN7GT VT-231 RCA CRC JAN smoked vintage vacuum tubes, made in USA, both are black ribbed plates, clear top, smoked glass, tubes tests: 82, 80 %84, 86 % Price is for all tubes pictured. We test all tubes we sell! We will combine shipping! Check out my other tubes!Scale 1-100, good quality percentage on my Triplett starts at 54.

Welcome to JNS Vintage Radios and Tubes Vintage Vacuum Tube RCA6SN7GT (VT231, CV278) Description: The RCA 6SN7GT is an eight-pin octal with clear glass. It has twin plates, a rectangle getter and a tight base with no cracks. Clean pins, nice paint and a factory box. Test Results: This 6SN7GT was tested using our 3413B Triplett Tester. Test reads: 75/75%.Testing shows no shorts or grid emissions. Comments: A clean RCA 6SN7GT. Highly sought after. Code: 513. Used in a variety of vintage audio/HiFi applications. Visit Our Store@https://www.ebay.com/str/jnsvintageradioandtubes 60-day free return. JNS Vintage Radio is a veteran owned store supporting The Wounded Warrior Project. Your purchase helps support this organization. Proud Members of the California Historical Radio Society.______________________________________________________________________________________________General Info: Please read the listing in its entirety to understand what you are purchasing.If any information is unclear, its better to ask questions now than to have a return. JNS Vintage Radios and Tubes aims to be as accurate as possible when describing and testing radios and tubes. However, we are not experts in all Antique/Vintage Radios, Electronic Equipment and Vacuum Tubes. If you see an error, please contact us thru the eBay messaging system so we may correct the listing. Our vacuum tubes are inspected and tested on our newly rebuilt/calibrated Hickok 539B tester. The 539B is one of the best Hickok Testers. Each tube is cleaned and allowed to warm-up for 90 seconds prior to actual testing. Tubes are tested for quality, life, grid emissions and shorts. No tube is offered for sale that tests below the min number given. We also use our Triplett 3413B as a backup tester. Please note that all tube testers are not created equal, and your tester may show a higher or lower test result than our test equipment. All tubes are wrapped in bubble wrap, packed with peanuts and shipped in a sturdy cardboard box to protect it during transit. All antique and vintage radios are cleaned and tested when possible. Well provide an accurate description of the condition within the listing based on our findings. If you find an error or omission, please send us a message thru eBays message system. We now offer restored/repaired chassis by Bob Kelly Radio Restorations here in the Sierra. Bob has over 45 years as an electronics technician in the communications industry and has provided quality radio restorations for many years. Radios are wrapped in bubble wrap and packed with peanuts and when necessary, squares of Styrofoam used to protect glass dials, knobs and switches. A word on shipping:JNS Vintage Radios and Tubes uses the United States Postal Service for the majority of our shipments both in the US and Internationally. We employ the eBay shipping calculator to estimate shipping costs. We do not charge a handling fee unless the item is heavy and requires additional attention such as double boxing or needing a shipping crate built.The majority of our shipments use First Class Mail for vacuum tubes and Priority Mail for larger items which provides tracking and insurance. We also use Fed Ex as needed to help save you money. Please contact us should you desire another shipping service. While the eBay shipping calculator is usually accurate, but not always, It is our policy to refund any excess shipping after the item has shipped. Need a firm shipping quote? Contact us. All taxes and duties for international shipments are the responsibilities of the buyer. Please contact your local Customs or Import Authorities. A word regarding returns:If you receive your item and it is damaged. Please contact us first. We want you to be satisfied with your purchase and we work diligently to ensure concerns are resolved fairly, promptly and to your satisfaction. Communication is the key to a successful return. We are proud of our feedback profile maintaining a 100% satisfaction rate since 2014.Returns will be excepted on all tubes and radios unless otherwise specified in the listing description.Returns must be in the original packaging and must have a tracking number assigned. Delivery signature is not required. If the item has been damaged through shipping, please contact us first on how to proceed. This crucial step protects both the buyer and seller and ensures that claims get approved fast and quickly paid. There are no returns authorized on Untested Parts or Parts or Repair items. These items are purchased AS IS and will be stated in the listing description. JNS Vintage Radios and Tubes thanks you for visiting our store and allowing us to provide you quality tubes and vintage radios.

=°=Clic ?Mes autres ventes, all my listings 6SN7GT RCAcode S3voir photos, see photos !? Best quality :1940s round top mica + ears side micasTested strong : 95/98 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tube was tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

=°=Clic ?Mes autres ventes, all my listings 6SN7GT RCAcode 809voir photos, see photos !? Best quality :1940s round top mica + ears side micasTested: 84/89 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tube was tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

=°= =°=Clic ?Mes autres ventes, all my listings 2x 6SN7GT RCAWhite boxes, code 839 & 809voir photos, see photos !! ? Both 1940s round top mica + ears side micasTested strong matched: 98/101 & 97/97 (Mini 50) ? Mutual conductance? Common manufacturers new range test around 95-100 on this tester !Tubes were tested on my calibrated HICKOK TV-7/ U military tester for: shorts / gas / and mutual conductance - Minimum Reject Point for a 6SN7 is 50/50 = M R P is 60/65 % of the tube life. >> Theoretical new 6SN7 starts at 85 + Tubes are guarantied not to be Dead On Arrival and to test as stated in this auction 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.....

Matched Pair Vintage 1940s RCA Grey Glass 6SN7GT / VT-231 Valves/Vacuum Tubes - AVO Tested strong & balanced. In excellent condition. Tested in phono stage for noise, perfectly quiet. One of the best VT-231s with amazing opaqueness and sound stage. Possibly NOS. Tested on a recently calibrated AVO VCM 160 with the results shown in the photos. AVO NOS Specs: IA = 9.0 GM = 2.9 No leaks or shorts, solid bases, shiny pins. Will be very well packed and promptly sent via tracked, insured delivery - or collect and save on the delivery charge.

Tested Pair of JAN CRC 6SN7GT VT 231 RCA Audio Receiver Guitar Preamp Vacuum Tubes Country of origin: USA Production era: Estimate 1960s Model: JAN CRC 6SN7GT VT-231 Manufacturer: RCA Type: Preamp Plate type: black ladder Filaments: standard Base type: octal 8 pins Spacers: two Getter flash: base Glass: smoked gray Stencils: very good Condition: very good Usage (estimate): minimal, minor emissions Quantity: 2 Please review the photos for more detail Test results: Strong balanced NOS test results for Gm: 2.64 / 2.60 and 2.50 / 2.60 For Gm, the suggested minimum value is: 1.7 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in audio amplifiers, power amps, and general tube equipment The tubes will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information

** RCA VT-231 Gray Glass 1940s Tubes (Pair) **Gray Glass - Mica Ears - Bottom Foil Getter Tube #1: Labeled RCA - Vintage 1943 MAR/APRTube #2: Labeled RCA - Vintage 1943 MAR/APRMatching Production Date Codes: K2E Triple Platinum Matched on AT1000 - TESTS NOS This is one of my favorite tubes from the 1940s. This is the very 1st version, and the best of the RCA Gray Glass tubes. These are an extremely high demand tube thats becoming close to impossible to find in matched pairs. Incredible vocals, a warm and full mid range and very good bass extension with incredible low level detail. Imaging is precise and the perceived staging is extremely wide.Please Read My Feedback and Buy with ConfidenceI Stand Behind Everything I Sell Amplitrex AT1000 Test Results 95%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs (GM) Mutual Conductance 2600 = NOS (EM) Emission 8 gV = Spec Noise Test (Mu) Gain TUBE #1 2650/2600 (101.9/100.0%) 8.0/7.8 (100.0/97.5%) 5/5 20.5 19.8 TUBE #2 2630/2680 (101.2/103.1%) 8.1/8.0 (101.3/100.0%) 5/4 19.9 19.5 TUBE #3 N/A N/A N/A N/A TUBE #4 N/A N/A N/A N/A PERFECT = 0.0% (5% or Less = Outstanding)Balance (Balance Goal = Mhos > 5% / Gv > 10%)Tube 1: A to B = Mhos - 1.9% Gv - 2.5%Tube 2: A to B = Mhos - 1.9% Gv - 1.3%Match (Tube 1 to Tube 2) (Match Goal = Mhos > 5% / Gv > 10%)Tube 1A to 2A = Mhos - 0.8% Gv - 1.3%Tube 1B to 2B = Mhos - 3.1% Gv - 2.5% Microphonics Test Scale: 5 = Ultra Low; 4 = Very Very Low; 3 Very Low Tube Gain (mU): 20 mU (+ or - 3 mU) = NOMINAL About BULLzTUBEz:Ive been an Audiophile for over 50 years, 2 time National Champion in Car Audio and owned a chain of Car Stereo Stores... I have a massive collection of vacuum tubes specializing in mostly esoteric tubes but we have just about any tube you need. Just check the store for the listed inventory. If you have a request just send a message to NOVA.76 through the eBay messaging system... I stand behind everything I sell... My goal is to Create a Positive Experience for my customers... About our TUBEz:All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). All my tubes are tested thoroughly on an Amplitrex AT1000... My backup tube testers are a AVO MKII and another Amplitrex AT1000... I WILL NOT GUARANTEE THAT MY READINGS WILL MATCH YOUR READINGS... Warranties:Used or vintage items are sold as is with no warranty beyond the description and photographs provided on the listing. Returns will NOT be accepted for reasons such as: ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings dont match my tester. Any exceptions are on a case by case basis and subject to a 15% restocking fee... Shipping:Domestic Shipping to the continental United States will be by the US Postal Service (USPS) including free tracking. Some items listed will ship free and will be clearly listed as free Shipping. Items not listed as free shipping will be for the cost of packaging plus shipping only, no extra charge will be added to the USPS fee. INTERNATIONAL BUYERS PLEASE CHECK THE SHIPPING CHARGES PRIOR TO BIDDINGInternational Shipping will be offered for select items and will be clearly identified in the listings Shipping & Payment tab. Shipping will be by the eBay International Standard Shipping and be made available as a shipping option at check-out. Shipping costs to international locations will be paid by the buyer. The shipping and handling cost will be clearly identified at check-out. THERE ARE NO RETURNS ON INTERNATIONAL SHIPPING, apart from the exceptions as dictated by eBay... Please note the following:Import duties, taxes and charges are not included in the item price or shipping charges. These charges are solely the buyer’s responsibility.Please check with your country’s 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.We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior.

** RCA VT-231 Gray Glass 1940s Tubes (Pair) **Gray Glass - Mica Ears - Bottom Foil Getter Tube #1: Labeled RCA - Vintage 1945 MAY/JUNETube #2: Labeled RCA - Vintage 1945 MAY/JUNEMatching Production Date Codes: V3E Triple Platinum Matched on AT1000 - TESTS NOS This is one of my favorite tubes from the 1940s. This is the very 1st version, and the best of the RCA Gray Glass tubes. These are an extremely high demand tube thats becoming close to impossible to find in matched pairs. Incredible vocals, a warm and full mid range and very good bass extension with incredible low level detail. Imaging is precise and the perceived staging is extremely wide.Please Read My Feedback and Buy with ConfidenceI Stand Behind Everything I Sell Amplitrex AT1000 Test Results 95%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs (GM) Mutual Conductance 2600 = NOS (EM) Emission 8 gV = Spec Noise Test (Mu) Gain TUBE #1 2700/2670 (103.8/102.7%) 8.0/8.2 (100.0/102.5%) 5/5 19.7 20.0 TUBE #2 2700/2700 (103.8/103.8%) 8.1/8.0 (101.3/100.0%) 5/5 20.5 20.5 TUBE #3 N/A N/A N/A N/A TUBE #4 N/A N/A N/A N/A PERFECT = 0.0% (5% or Less = Outstanding)Balance (Balance Goal = Mhos > 5% / Gv > 10%)Tube 1: A to B = Mhos - 1.2% Gv - 2.5%Tube 2: A to B = Mhos - 0.0% Gv - 1.3%Match (Tube 1 to Tube 2) (Match Goal = Mhos > 5% / Gv > 10%)Tube 1A to 2A = Mhos - 0.0% Gv - 1.3%Tube 1B to 2B = Mhos - 1.2% Gv - 2.5% Microphonics Test Scale: 5 = Ultra Low; 4 = Very Very Low; 3 Very Low Tube Gain (mU): 20 mU (+ or - 3 mU) = NOMINAL About BULLzTUBEz:Ive been an Audiophile for over 50 years, 2 time National Champion in Car Audio and owned a chain of Car Stereo Stores... I have a massive collection of vacuum tubes specializing in mostly esoteric tubes but we have just about any tube you need. Just check the store for the listed inventory. If you have a request just send a message to NOVA.76 through the eBay messaging system... I stand behind everything I sell... My goal is to Create a Positive Experience for my customers... About our TUBEz:All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). All my tubes are tested thoroughly on an Amplitrex AT1000... My backup tube testers are a AVO MKII and another Amplitrex AT1000... I WILL NOT GUARANTEE THAT MY READINGS WILL MATCH YOUR READINGS... Warranties:Used or vintage items are sold as is with no warranty beyond the description and photographs provided on the listing. Returns will NOT be accepted for reasons such as: ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings dont match my tester. Any exceptions are on a case by case basis and subject to a 15% restocking fee... Shipping:Domestic Shipping to the continental United States will be by the US Postal Service (USPS) including free tracking. Some items listed will ship free and will be clearly listed as free Shipping. Items not listed as free shipping will be for the cost of packaging plus shipping only, no extra charge will be added to the USPS fee. INTERNATIONAL BUYERS PLEASE CHECK THE SHIPPING CHARGES PRIOR TO BIDDINGInternational Shipping will be offered for select items and will be clearly identified in the listings Shipping & Payment tab. Shipping will be by the eBay International Standard Shipping and be made available as a shipping option at check-out. Shipping costs to international locations will be paid by the buyer. The shipping and handling cost will be clearly identified at check-out. THERE ARE NO RETURNS ON INTERNATIONAL SHIPPING, apart from the exceptions as dictated by eBay... Please note the following:Import duties, taxes and charges are not included in the item price or shipping charges. These charges are solely the buyer’s responsibility.Please check with your country’s 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.We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior.