Konvolut seltene Röhren RCA 5763 5749 5654 5683 Verstärker usw. größtenteils neu Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern.Die Röhren sind größtenteils neu, wurden aber nicht alle durchgeschaut. Wir bieten eine Vielzahl an alten Bastel -und Sammelobjekten an.Bitte beachten Sie, dass aufgrund des Alters keine Garantien auf die technischen Funktionen gegeben werden können.The parts are very old, we dont give any guarantee on the technical function. Zahlung Versand Es ist möglich Artikel für den Versand zu kombinieren, die am gleichen Wochenende gekauft werden. Es ist nicht möglich Artikel aus mehreren Wochen zusammen zu versenden. Die angepasste Rechnung erhalten Sie dann Sonntags oder Montags nach Auktionsende. Aufwendiger Versand (klimaneutral) mit DHL Premium in 2-welliger Kartonage und aufwendiger Polsterung! Versand größtenteils plastikfrei, 80 Prozent des Versandmaterial aus recyceltem Altpapier bzw. Second-Hand Kartonagen. WORLDWIDE SHIPPING ON REQUEST! PLEASE ASK BEFORE YOU BUY! Links Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Newsletter Verpassen Sie keine Angebote mehr! Wir informieren Sie über Angebote und Aktionen bequem per E-Mail. Newsletter abonnieren Kontakt Senden Sie uns eine Nachricht

QTY=7 5763 tubes. Results are posted in photo. Tested on my Hickok/Western Electric KS-15874-L2 computer controlled tester.

Vintage RCA RADIOTRON TUBE 5763 Electronic Radio Tube New Old StockQuick shipping: items ship daily Mon-Fri from California, USA. So expect a quick delivery.All pictured items included. Take another look at the photos to see exactly what youll receive.Check out our eBay store for rare and unique finds. We offer a variety of one-of-a-kind treasures that you wont find anywhere else.To see more of our selection, simply click on the direct link to our eBay store provided below. ENJ ECommerce eBay Store

Wir haben deinradio! Senden Sie uns eine Nachricht Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt 3x 5763 Röhre geprüft top selten RCA Ultron UKW Funktechnik Sender Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern.Die Röhren wurden als gut geprüft. Wir bieten eine Vielzahl an alten Bastel -und Sammelobjekten an.Bitte beachten Sie, dass aufgrund des Alters keine Garantien auf die technischen Funktionen gegeben werden können.The parts are very old, we dont give any guarantee on the technical function. Zahlung Versand Kombiversand nur bei Artikeln möglich, die am gleichen Tag gekauft werden. (aus einer Auktionsrunde) DIe angepasste Rechnung erhalten Sie dann nach Auktionsende. Aufwendiger Versand (klimaneutral) mit DHL Premium in 2-welliger Kartonage und aufwendiger Polsterung! Versand größtenteils plastikfrei, 80 Prozent des Versandmaterial aus recyceltem Altpapier bzw. Second-Hand Kartonagen. WORLDWIDE SHIPPING ON REQUEST! PLEASE ASK BEFORE YOU BUY! Links Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Newsletter Verpassen Sie keine Angebote mehr! Wir informieren Sie über Angebote und Aktionen bequem per E-Mail. Newsletter abonnieren Kontakt Senden Sie uns eine Nachricht

Here we have 1x Type 5763 Vacuum Tube NOS/NOS Testing or Near NOS Testing We have many in stock of various makes. All have been tested on a Calibrated Hickok 800a Vacuum Tube tester. They all test near to or NOS in testing. Some are new old stock in the box, some are used. When you buy one I will just pull one from the box. The picture is a stock photo. Graphics range from Excellent to quite Faded. Thank you for looking Photos Photos shown in this listing are of the actual item for sale. NO STOCK PHOTOS USED unless otherwise stated. All our items, including changeable parts like bulbs, etc are security marked. If an item is returned these marks that have been hidden throughout the unit are checked before any refunds are given. ( sorry about this , but there are those out there that think it is clever to change parts and return faulty ones. In photographs we occasionally use props to display items in the best light possible. These props, like my white board, lighting , kitchen table, Train track, boxes, my left or right hand are not including unless otherwise stated in the listing. ( Sorry for you having to read this but you would be surprised how many people think the items come with my table or a part of my anatomy that I have accidentally caught on camera.) In the first few lines you will see what you are bidding on, i.e... “This auction is for a ?????????? If it does not say base, stand , table , in either the main body of the description or title ... then they are NOT included in the sale. VACUUM TUBE TESTING I do not Sell Just Passable Vacuum Tubes. All tubes purchased have loads of life left in them. Low and weak tubes are unceremoniously thrown in the nearest trash can, unless they are collectors Items. When using the word “Matched” it means in test results rather than in cosmetic looks. Whilst I endeavor to put tubes together from the same year and look the same, this is not always the case. I may have the same tube but from differing years matched up in test results, which means they may cosmetically or internally look a little different... The numbers/letters in parentheses are Equivalents put in to help people to find the correct tube. If it does not say MATCHED then please do not consider them to be such. If you need to know the test results that I get then please just ask. I do not publish test results in the listing as what I get, and what someone else might get can be different. I use a TV7/U military spec Tester which is calibrated. I have 4 of these machines and all display a slightly differing value if I test the same tube, as two testers are never the same. So this shows what I get, and what you get may be slightly different. I also sometimes use a Hickok 752 for testing If I state any values they are for a guide only. All tubes have passed the Gas and short tests. Rectifiers and Diode tubes do not have Transconductance values. Please have a look at the pictures for the cosmetic condition. Please realize when buying antique, vintage or used equipment that they cannot be in an absolute mint or absolute perfect condition, they might need some service, now or later. I take lots of pictures so you can see cosmetics. Use the zoom function and have a good look. It is impossible to describe every scratch, scuff or mark. So take a good look. That is what they are there for. We check and describe the as much of the functionality as we can. If not Fully tested , then items are not tested to the full extent and may have something wrong that I have not discovered. If Fully tested then that is what they are. Fully working. IF YOURE UNHAPPY WITH AN ITEM ... Contact us via messaging. I am human... I make mistakes once in a while. I Run this store on eBay.I am not a huge retail outlet. I try to resolve any issue to both our best interests. MAILING I Try to Mail out within 24 hours of your payment. Where I live the Post office is closed on a Saturday, so Purchases paid for on a Friday will go out on Monday as I work Fridays and do not get home until after the PO is closed. GRADING OF CDs and RECORDS What do the GRADING MEAN? NEW - Unopened and brand new, sealed. Like NEW - Used but no obvious signs of use. ( May be very light Scratching but not noticeable ) ( or the Case/Cover may be Scuffed a little) EXCELLENT- Very light ware to both the CD / Record or CASE/ Cover. Very GOOD PLUS - USED, Some Light Scratching to either the case or CD/Record. Plays Well. Light scratching to the case/ Cover. Very GOOD - USED Light Scratching to both the Case and CD/Record. Slightly Heavier than Above. GOOD PLUS. Light and medium scratching. CD still plays Well . Cover is in Good condition but has normal wear and tear. GOOD. Heavy use. Medium to heavy scratching. CD/Record still Plays ok. May jump or you will hear scratching on the record., or if this is in grading is in regard to the case/Cover then there may be cracks in the case or the cover is Torn , or has rips along its edges or scuffed quite badly. Fair - The CD? Record plays, sometimes skips. Heavy scratching to the disc. In regards to the case or cover, then the case/ Cover is just holding itself together. Poor. CD/Record does not play. In regards to the case/ Cover then this grading means the case or sleeve is badly torn, scuffed, cracked and is falling apart. generally poor condition. Please remember I am not a professional grader. I am quite harsh on what is good and bad. So some items that I may describe as Fair... may be good or above. It is just my opinion and I would rather paint a bleaker picture of something rather than saying it is better than it is. Return policy If in the main body of my listing I sell something AS IS. This means That I have tested something NOT TO ITS FULL EXTENT. Therefore I cannot be 100% sure of its working ability when you get it. In these cases it is best bidding on it as if it was broken. If I say UNTESTED. then I have not test it. Or have only gone so far to test it. I am not like other sellers who say untested and am selling something I know to be broken. I have sold many items as UNTESTED and they have worked perfectly well for the buyer. On the other hand I have sold items that have ended up not working at all. So to recap. You buy items that are untested or Part tested at your own risk. There are NO RETURNS on things I cannot test to the full extent. It is up to you to make a judgment call and decide if it is worth the risk of bidding. FULL REFUNDS ARE AVAILABLE of the purchase cost and original shipping cost if the item you receive is grossly misrepresented or if an item advertised as working arrives in a non-working condition We will pay for return shipping, in some cases. But in most cases the return shipping is the sole responsibility of the BUYER I accept returns unless stated otherwise in the description. We insure everything, and we have to pay for this insurance. I also pack well. If you still receive an item that has been damaged please let us know so we can start an insurance claim. This is a process, and it takes time. I will then gladly refund your money. This is the reason for insurance, and I think it is only fair to ask the carrier responsible for the damage to pay for it. Please be patient enough for this process. If you are demanding your money back and are not prepared to go wait for the insurance process or fail to present the item for the PO or Carrier then it is also only fair you pay for the return shipping because we now cannot claim on the insurance once it leaves you. I am sure you will agree that it defeats the purpose of us insuring anything if no one is going to use the claim process. Should the Claim process fail , for no fault of ours or yours, then we will certainly refund you your money in full. By bidding on this item you agree to these stipulations and to follow the instructions of the post office, or carrier. They will normally want to see the item AND PACKING. If you throw away the packing then this makes the insurance VOID. Thank you for your cooperation and understanding. DISCLAIMER/WAIVER OF LIABILITY Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by bidding on this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. 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. For more information regarding taxes, etc. for some countries please check you local countries Web site. Most have one. •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’ , demos, etc. - US and International government regulations prohibit such behavior. PLEASE DO NOT ASK Please check with your countrys customs office to determine what these Additional costs will be prior to bidding or buying.

New old stock RCA 5763 vacuum tube. Beam-power tube rated 8 watts plate dissipation. Made in USA. Shipping can be combined with my other tubes, sockets, and parts for sale on my ebay store, $0.50 for each additional miniature, $1 for each additional octal. Add to cart then request total.New Old Stock (NOS) tubes come in original boxes unless otherwise mentioned. Sometimes box styles will vary. Box may have suffered shelf wear, tabs may be torn, may have price stickers or other writing. Unless otherwise mentioned, I have not tested the NOS tube but will refund or replace tubes that do not meet original specifications. While stock is available, I will attempt to meet brand or sub-type requests that do not require detailed inspection. Some types have additional stock or brands available. Mixed type quantity discounts available for most vacuum tubes, add all items to cart and pay together. International buyer is responsible for any import fees or taxes.

Four (4) 5763 RCA vintage vacuum tubes, made in USA, all are grey smooth plates, top rectangular getter, tubes tests: 84, 84, 84, 82 %Price is for all tubes pictured. We test all tubes we sell! We will combine shipping! Check out my other tubes! Tubes are tested for emission, as well as for shorts, life test and grid leakage on calibrated Sencore Mighty Mite tube tester, on scale 1-120, good quality on my Sencore starts at 70. Normal 0 false false false EN-US X-NONE X-NONE

Item: RCA JRC 5763. Description: The RCA JRC 5763 is a nine-pin miniature with clear glass. It has a square getter and a black plate. Nice silver and paint, clean pins and a factory box. Testing: Tested using our Triplett 3413B tester. 88%. A test data sheet is included. Quantity: 1. Shipping: Ships for $5.99 flat rate. USPS Ground Advantage. 60-day guarantee. Thank you for your interest.

6AV6 6AU6A 6FH5 6X8 6BC5 6CE5 5763 5915 RCA RAYTHEON GE THE FISHER ZENITH TUBES. Condition is Used. Shipped with USPS Priority Mail.

Welcome to Vacuum Tube Depot llc! We have been one of the leading online suppliers of vacuum tubes for many years. Recently, we acquired a very large collection of tubes that we are excited to offer. We have tested and sold thousands of these tubes, and have many, many more to sell. After testing literally thousands of tubes from this collection, we have found only a small handful that did not test well. The vast majority tested strong. Buy with confidence, and if you are not happy with your purchase, you can send it back on your dime for a refund. We will combine shipping on multiple purchases within 5 days of the first auction ending. Payment must be made within 5 days or your purchase will be canceled and re-listed. We do not have the space to hold onto auctions for you for any longer than this. If you would like combined shipping, please wait to make payment until after we have sent your invoice. We send invoices each day after all auctions have ended for that day. Combined shipping can only be combined with this shop, not other shops with similar names. Thank you for shopping with Vacuum Tube Depot llc!

New - CV4039 M8096 6062 QVO3-12 5763 MULLARD BOXED VALVE TUBE NOS NIB

New - CV4039 M8096 6062 QVO3-12 5763 MULLARD BOXED VALVE TUBE NOS NIB

Welcome to JNS Vintage Radios and Tubes Vintage Vacuum Tube RCAJRC 5763 Description: The RCA JRC 5763 is a nine-pin miniature with clear glass. It has a square getter and a black plate. Nice silver and paint, clean pins and a factory box. Test Results: This 5763 was tested using our Triplett 3413B tester.Test reads: 88%.Testing shows no shorts and no grid emissions. Comments: A Clean RCA JRC 5763. Used in military, commercial and amateur radios VHF/UHF. Visit Our Store. https://www.ebay.com/str/jnsvintageradioandtubes Proud Members of the California Historical Radio Society.

Welcome to Vacuum Tube Depot llc! We have been one of the leading online suppliers of vacuum tubes for many years. Recently, we acquired a very large collection of tubes that we are excited to offer. We have tested and sold thousands of these tubes, and have many, many more to sell. After testing literally thousands of tubes from this collection, we have found only a small handful that did not test well. The vast majority tested strong. Buy with confidence, and if you are not happy with your purchase, you can send it back on your dime for a refund. We will combine shipping on multiple purchases within 5 days of the first auction ending. Payment must be made within 5 days or your purchase will be canceled and re-listed. We do not have the space to hold onto auctions for you for any longer than this. If you would like combined shipping, please wait to make payment until after we have sent your invoice. We send invoices each day after all auctions have ended for that day. Combined shipping can only be combined with this shop, not other shops with similar names. Thank you for shopping with Vacuum Tube Depot llc! We have tons of these flats loaded with tubes. We opened maybe tons boxes to make sure tubes matched the boxes, out of all the boxes we opened. Most matched, but several had the correct number but different brand from box. Sold as is

5 x CK 5763 Raytheon(USA) Tubes Made in USA NOS NIB I do combine S&H

2 X VINTAGE MULLARD 5763 ELECTRONIC VALVES NEW OLD STOCK MADE IN GB. FROM A HOUSE CLEARANCE OF A FORMER BBC ENGINEER WHO SADLY PASSED AWAY LAST YEAR LOW STARTING BID 1.99 OFFERS WELCOME WORLDWIDE AND COMBINED POSTAGE AVAILABLE RETURN ACCEPTED

6 Unused RCA GE 5763 Vacuum Tubes ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6I have many other types of tubes No Additional Shipping Charges ~~ I will combine all Auctions purchased All tubes Guaranteed ?????? Thank You! ?????? ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes317

3 RCA JRC 5763 Vacuum Tubes ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ USA Shipping $6I have many other types of tubes ~ No Additional Shipping ChargesAll tubes GuaranteedThank you ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes15

6AV6 6AU6A 6FH5 6X8 6BC5 6CE5 5763 5915 RCA RAYTHEON GE THE FISHER ZENITH TUBES. Condition is Used. Shipped with USPS Priority Mail.

Welcome to JNS Vintage Radios and Tubes Vintage Vacuum TubeByRCA5763 (6062 CV2129) Description: The RCA 5763 is a nine-pin miniature with clear glass, grey plate, halo getter and clean Pins. Has nice paint and a factory box. Test Results: This 5763 was tested using our Tripplett3413B tester.Test reads: 80%.Testing shows no shorts and no grid emissions. Comments: A clean RCA 5763. Used in a variety of Ham, Commercial & Amateur Radios. Visit Our Store@https://www.ebay.com/str/jnsvintageradioandtubes 60 Day Free Return. JNS Vintage Radios and Tubes will gladly combine shipping to save you money! 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.

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES/PARTS FOR SALE THESE ARE THE TUBE/TUBES/PARTS FOR SALE:  MANUFACTURER:     GE PRODUCTION CITY:                                    HARRISON NEW JERSEY TUBE TYPE:   5763 DESIGNATION:                                             RIGHT TUBE WRONG BOX YEAR:     MONTH:    Date code match    SINGLE MICA:    2 PLATES:    GREY GM %:     120% ON ALL SINGLE/PAIR/QUAD/MULTI:    SINGLE GETTER:                                                          O GETTER                                        DATE:      VARIES GE FOUND IN AN RCA BOX.TEST GREAT This auction is for ONE TUBE. You will receive one of these tubes.  Normal 0 false false false EN-US X-NONE X-NONE On my tester a B&K 747 tester:    Below 55 = BAD      55-65 = ?     65 -100 = Good     100-120+ = NOS     NOTES ON THE BOXES. LISTING WILL GENERALLY HAVE INFORMATION ABOUT ANY BOXES ASSOCIATED WITH THE TUBES FOR SALE. THESE ARE THE OPTIONS: 1. ORIGINAL BOXES IN VARYING CONDITION. THESE BOXES WILL BE THE ORIGINAL BOXES THE TUBES CAME IN AND WILL SHOW AGING IN VARYING DEGREES. THESE TUBES ARE ASSUMED TO BE NEW AND WILL TEST AS NOS. 2. NO BOXES PROVIDED (NONE AVAILABLE USUALLY USED AND SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 3. REPURPOSED BOXES. THESE ARE BOXES OF THE SAME MANUFACTURER. THESE WILL HAVE A LABEL OVER THE TUBE NUMBER THAT REFLECTS THE TUBE BEING SOLD. THESE TUBES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 4. TUBEHUNTER BOXES. THESE ARE BOXES I HAVE MADE WITH GREAT TIME AND EXPENSE TO PROTECT YOUR VACUUM TUBES AND PROVIDE FOR STORAGE AND EASY IDENTIFICATION. TUBES IN THESE BOXES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 5. WHITE BOXES. SHOULD BE SELF EXPLANATORY. TESTING OF TUBES: THIS IS DONE ON A NUMBER OF TESTING DEVICES 1. TEKTRONIX CURVE TRACER 2. B&K 747 TUBE TESTER 3. MERCURY 1000 DYNAMIC MUTUAL CONDUCTANCE TESTER INTERPRETATION OF RESULTS: NOS = 80% TO 135% GOOD = 65% TO 80% ? OR MARGINAL : 55% TO 65% BAD = 55% TESTING RESULTS SHOW HOW THE TUBE IS PERFORMING  NOW.  TESTING RESULTS DO NOT SHOW HOW OLD A TUBE IS OR HOW MANY HOURS IT HAS BEEN USED. HOWEVER IF A TUBE TEST NOS YOU CAN BE ASSURED IT WILL LAST A LONG TIME AND IS WORKING VERY WELL. I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.    Listing and template services provided by inkFrog

Panasonic PT-RZ370U DLP Projector Full HD 5763 Hours HDMI Works good! No remote, but has controls on the side! Sold as shown! Shipping will be $45.00 to anywhere in the lower 48 states!

New - CV4039 M8096 6062 QVO3-12 5763 MULLARD BOXED VALVE TUBE NOS NIB