2 x NOS genuine Telefunken ECC802s 12AU7WA <> diamond on bottom Selected for best electrical matching, not for the optical performance With active burn-in ** Excellent very high test result : gm = 2,7mA/V ± 0,1 tolerance all 4 parts (100% = 2,2 mA ±0,2) **To restore the best possible quality, this tube have gone through a controlled burn-in process.

The price is for ONE tube Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: It is important to bear in mind that the shipping service I offer in the listing is $28.65 to all regions to which Vietnam post is available. Due to the bad epidemic, Vietnam post is not always available to some locations especially in Africa, some South American countries or even some Northern European nations. Also, it takes longer than usual (22-60 days depending on the distance and your local customs). So, please wait patiently email/message me if there is any problem occurred before opening disputes on ebay. It will make the situation more complicated and obviously affect my selling performance.  For that reason, please ask me before bidding. Besides, if you need the tubes urgently, you have to pay an extra of $45.75 (taking 10-12 days) or $68.75 (taking 3-5 days) by DHL to all regions world-wide. Thanks a million

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 18.65 pounds. However, there may be no service to some locations. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 43-45 pounds taking 3-7 working days depending on your local customs. Please let me know soon before you pay. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

2x TESLA ECC802S (=E82CC 6189) lk Telefunken, Close 1966 Date Codes, NOS/100%++/Matched/Balanced! 284+286 You are bidding on two pieces of a rare TESLA ECC802S (12AU7WA, E82CC) variant. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. Construction-wise, they are similar to the exceedingly expensive Telefunken ECC802S tubes, and some like these even better. Both tubes feature non-corrosive pins, old-style yellow prints, large ribbed plates, copper system and grid posts (as well as gold-plated grid wires, see the last photo), and large halo getters. Rare 1960s production! Both tubes are NOS, with 7/1965+3/1966 date codes. The tubes were tested as 100%++, and also checked for leaks, and shorts under both cold and hot conditions. Nice optical condition, please see photos. Testing well, and well matched/balanced, withing approx. 5%: Tube 1 (284): Ia1= 4.80 mA / Ia2 = 4.70 mA, S/gm1= 1.50 mA/V / S/gm2= 1.50 mA/V Tube 2 (286): Ia1= 4.70 mA / Ia2 = 4.80 mA, S/gm1= 1.40 mA/V / S/gm2= 1.50 mA/V They would be great for guitar amps (Fender Twin, Gibson GA90, Magnatone 415 or as subs for 12AX7s/12AT7s where applicable), for microphones, as well as for hi-fi purposes or DIY projects. Great tubes! If you are not satisfied for any reason, Ill take them back for a refund (minus postage)! I have more vintage ECC82, ECC83, and ECC81 tubes for sale in my other listings. See my other items for more vintage, rare tubes: pairs of AZ11/AZ1/RGN1064 mesh plate rectifiers, NOS TESLA E88CC and ECC802S, ECC803S triodes, NOS NIB 1950s foil getter Tungsram EZ80 singles/pairs, and more... I have too much spare parts, ongoing storage cleaning, dont miss out! Payment: - eBay Managed (now a mandatory option for seller) - Cash on Pickup - No other method of payment (checks etc.) can be accepted. Terms: This is a private auction and the item described is sold as is, without warranty. All the items are sold from my private collection. Winning bidder must contact me within 3 days after the end of this auction. I expect to receive payment in maximum of 14 days after the end of auction, otherwise I will have to report the non-paying bidder to eBay and ask them for a refund. I am responsible for eBay fees, buyer is responsible for all the fees associated w/shipping, money transfer or customs in the country of destination. I can accept Escrow.com (only for valuable items, of course), but buyer must pay for all the associated fees. Thank you for looking! Please take a look at my other auctions for similar items...

The price is for ONE pair Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: The shipping fees in the listing is by regular mail (normally Vietnam post) taking from 12-25 days depending on buyers' local customs. To some regions, it can take even longer than that. Besides, Vietnam post is not always available to some countries in South America, Northern Europe or Africa. Please ask me before paying. If you want to use express shipping services like DHL, Fedex or UPS express taking 3-7 working days, you have to pay an extra of around $40.10. Please let me know so that I can send you an invoice. If the item(s) purchased may not arrive or faulty, please don't hesitate to contact me before opening cases on ebay. I am willing to reach to a solution and make you completely satisfied. Thanks a million

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 28.65 pounds. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 63 pounds taking 3-7 working days depending on your local customs. Please let me know soon. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

Wir haben deinradio! Senden Sie uns eine Nachricht Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt 2x Telefunken ECC802S Röhre NOS neu same Code Paar extrem selten E82CC ECC82 Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern. Die Röhren wurden auf einem Funke W19 als sehr gut geprüft. Die Ergebnisse der Messung in mA:19,5/19,519/19,5(NEU) 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

You are bidding for one Telefunken G73-R black coated specially designed for HP used for special purposes. They were made in Germany in 1960s. This type of tubes is deadly quiet with clear and clean sounds. They are quick, precise, dynamic and very harmonic. The tube was well tested on TV-7D/U and Avo ct160 at the NOS range. All the tubes from us are give one-month warranty since the time of arrival. There are many rare tubes in stock. Please request to meet your needs. Please ask before bidding. There are many types of raretubes in stock. Matched pairs and matched quads are available. Thanks P/S: The shipping service here is by Vietnam post taking 14-22 days depending on your local customs. For regions that Vietnam post is not available, I’ll use express services like DHL, FedEx or UPS express taking 3-7 working days. However you have to pay an extra for the fees and shipping insurance with track ($68 in total). Please request your shipping option if you need them urgently. Some locations to which Vietnam post is not available, I’ll use express services and buyer have to pay an extra of course. Thanks

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 18.65 pounds. However, there may be no service to some locations. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 43-45 pounds taking 3-7 working days depending on your local customs. Please let me know soon before you pay. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

TRÈS RARES Une paires (2) ECC802S / 12AU7 TELEFUNKEN Une Véritable paires de ECC802S TELEFUNKEN Fabrication : ALLEMAGNE Losanges aux fonds des tubes Tubes neufs testés : METRIX U61 Valeurs fabriquant 100% = 10,5ma/ 10,5ma , 2,2ma/v , 2,2ma/v @250/--8,5 Valeurs METRIX U61 tube 1 = 10 ma/ 10 ma , 2,5ma/v , 2,5ma/v @250/--8,5 Valeurs METRIX U61tube 2 = 10 ma/ 11 ma , 2 ma/v , 2,2ma/v @250/--8,5 EXPÉDITION MONDIAL

The price is for ONE pair Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: It is important to bear in mind that the shipping service I offer in the listing is $28.65 to all regions to which Vietnam post is available. Due to the bad epidemic, Vietnam post is not always available to some locations especially in Africa, some South American countries or even some Northern European nations. Also, it takes longer than usual (22-60 days depending on the distance and your local customs). So, please wait patiently email/message me if there is any problem occurred before opening disputes on ebay. It will make the situation more complicated and obviously affect my selling performance.  For that reason, please ask me before bidding. Besides, if you need the tubes urgently, you have to pay an extra of $45.75 (taking 10-12 days) or $68.75 (taking 3-5 days) by DHL to all regions world-wide. Thanks a million

2x TESLA ECC802S (=E82CC 6189) lk Telefunken, Same 1/1966 Date Codes, NOS/100%+/Matched/Balanced 269+285 You are bidding on two pieces of a rare TESLA ECC802S (12AU7WA, E82CC) variant. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. Construction-wise, they are similar to the exceedingly expensive Telefunken ECC802S tubes, and some like these even better. Both tubes feature non-corrosive pins, old-style yellow prints, large ribbed plates, copper system and grid posts (as well as gold-plated grid wires, see the last photo), and large halo getters. Rare 1960s production! Both tubes are NOS, with identical 1/1966 date and batch codes, same construction. The tubes were tested as 100%+, and also checked for leaks, and shorts under both cold and hot conditions. Nice optical condition, please see photos. Testing very well, and well matched/balanced, within approx. 5%: Tube 1 (269): Ia1= 3.90 mA / Ia2 = 4.10 mA, S/gm1= 1.20 mA/V / S/gm2= 1.20 mA/V Tube 2 (285): Ia1= 3.90 mA / Ia2 = 3.90 mA, S/gm1= 1.20 mA/V / S/gm2= 1.20 mA/V They would be great for guitar amps (Fender Twin, Gibson GA90, Magnatone 415 or as subs for 12AX7s/12AT7s where applicable), for microphones, as well as for hi-fi purposes or DIY projects. Great tubes! If you are not satisfied for any reason, Ill take them back for a refund (minus postage)! I have more vintage ECC82, ECC83, and ECC40 tubes for sale in my other listings. See my other items for more vintage, rare tubes: pairs of AZ11/AZ1/RGN1064 mesh plate rectifiers, NOS TESLA E88CC (incl. Gold Grids!) and ECC802S, ECC803S triodes, NOS NIB 1950s foil getter TESLA ECC82/ECC83 pairs, and more... I have too much spare parts, ongoing storage cleaning, dont miss out! Payment: - eBay Managed (now a mandatory option for seller) - Cash on Pickup - No other method of payment (checks etc.) can be accepted. Terms: This is a private auction and the item described is sold as is, without warranty. All the items are sold from my private collection. Winning bidder must contact me within 3 days after the end of this auction. I expect to receive payment in maximum of 14 days after the end of auction, otherwise I will have to report the non-paying bidder to eBay and ask them for a refund. I am responsible for eBay fees, buyer is responsible for all the fees associated w/shipping, money transfer or customs in the country of destination. I can accept Escrow.com (only for valuable items, of course), but buyer must pay for all the associated fees. Thank you for looking! Please take a look at my other auctions for similar items...

The price is for ONE tube Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: It is important to bear in mind that the shipping service I offer in the listing is $28.65 to all regions to which Vietnam post is available. Due to the bad epidemic, Vietnam post is not always available to some locations especially in Africa, some South American countries or even some Northern European nations. Also, it takes longer than usual (22-60 days depending on the distance and your local customs). So, please wait patiently email/message me if there is any problem occurred before opening disputes on ebay. It will make the situation more complicated and obviously affect my selling performance.  For that reason, please ask me before bidding. Besides, if you need the tubes urgently, you have to pay an extra of $45.75 (taking 10-12 days) or $68.75 (taking 3-5 days) by DHL to all regions world-wide. Thanks a million

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 28.65 pounds. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 63 pounds taking 3-7 working days depending on your local customs. Please let me know soon. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

You are bidding for one Telefunken G73-R black coated specially designed for HP used for special purposes. They were made in Germany in 1960s. This type of tubes is deadly quiet with clear and clean sounds. They are quick, precise, dynamic and very harmonic. The tube was well tested on TV-7D/U and Avo ct160 at the NOS range. All the tubes from us are give one-month warranty since the time of arrival. There are many rare tubes in stock. Please request to meet your needs. Please ask before bidding. There are many types of raretubes in stock. Matched pairs and matched quads are available. Thanks P/S: The shipping service here is by Vietnam post taking 14-22 days depending on your local customs. For regions that Vietnam post is not available, I’ll use express services like DHL, FedEx or UPS express taking 3-7 working days. However you have to pay an extra for the fees and shipping insurance with track ($68 in total). Please request your shipping option if you need them urgently. Some locations to which Vietnam post is not available, I’ll use express services and buyer have to pay an extra of course. Thanks

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 18.65 pounds. However, there may be no service to some locations. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 43-45 pounds taking 3-7 working days depending on your local customs. Please let me know soon before you pay. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

The price is for ONE pair Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: It is important to bear in mind that the shipping service I offer in the listing is $28.65 to all regions to which Vietnam post is available. Due to the bad epidemic, Vietnam post is not always available to some locations especially in Africa, some South American countries or even some Northern European nations. Also, it takes longer than usual (22-60 days depending on the distance and your local customs). So, please wait patiently email/message me if there is any problem occurred before opening disputes on ebay. It will make the situation more complicated and obviously affect my selling performance.  For that reason, please ask me before bidding. Besides, if you need the tubes urgently, you have to pay an extra of $45.75 (taking 10-12 days) or $68.75 (taking 3-5 days) by DHL to all regions world-wide. Thanks a million

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 28.65 pounds. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 63 pounds taking 3-7 working days depending on your local customs. Please let me know soon. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

You are bidding for one Telefunken G73-R black coated specially designed for HP used for special purposes. They were made in Germany in 1960s. This type of tubes is deadly quiet with clear and clean sounds. They are quick, precise, dynamic and very harmonic. The tube was well tested on TV-7D/U and Avo ct160 at the NOS range. All the tubes from us are give one-month warranty since the time of arrival. There are many rare tubes in stock. Please request to meet your needs. Please ask before bidding. There are many types of raretubes in stock. Matched pairs and matched quads are available. Thanks P/S: The shipping service here is by Vietnam post taking 14-22 days depending on your local customs. For regions that Vietnam post is not available, I’ll use express services like DHL, FedEx or UPS express taking 3-7 working days. However you have to pay an extra for the fees and shipping insurance with track ($68 in total). Please request your shipping option if you need them urgently. Some locations to which Vietnam post is not available, I’ll use express services and buyer have to pay an extra of course. Thanks

The price is for ONE tube Telefunken G73-R black coated glass, NOS, laboratory product, very reliable version, Tested Nos tightly matched, excluding shipping. I have some carton boxes each contain 100 pieces so they are all unused with NOS testing values and tightly balanced. Surpassing the quality control requirements of the famous Telefunken ECC802S, these are extremely rare, limited production, black shield coated, avionics/aircraft grade, factory selected Telefunken G73R. Manufactured solely for Agilent Technology and Hewlett-Packard, the proprietary G73R part number and RFI/EMI black coat shielding indicate the highest quality grading on the planet. This illustrates exhaustive aftermarket testing for low noise, uniform output, low microphonics, freedom from physical defects, long heater life and an even, uniform cathode emission. The finest West German manufactured Telefunken tubes with diamond marked, these have G73R hand written or Lab stamps on the outside black shield coating. Records indicate they were only available as spare parts for Agilent or H-P equipment. Critical use in hospital and aerospace equipment demanded tubes with extremely low noise and tightly controlled output. The ultimate tube for Hi-Fi, tube mics and mic preamps, these tubes are very fine, highly rare and in great demand. Authentic, the real deal, the bottom of the glass is diamond marked. Matched pairs and quads are available with tightly controlled transconductance from section to section and from tube to tube. Astonishingly accurate, the sound image blooms out of a dead quiet background.  If you want the best 12AU7 variant available anywhere, put these in your cart. You can order the number you want since there are hundreds of them in stock. They are carefully tested on my TV-7/U and my hifi system before being packed with NOS ranges from 110-120/56 min. If you are not sastisfied, please send them back with full refund within a month (of course you pay the returning fees). I guarantee the best quality of my tubes. Thanks a million P/S: It is important to bear in mind that the shipping service I offer in the listing is $28.65 to all regions to which Vietnam post is available. Due to the bad epidemic, Vietnam post is not always available to some locations especially in Africa, some South American countries or even some Northern European nations. Also, it takes longer than usual (22-60 days depending on the distance and your local customs). So, please wait patiently email/message me if there is any problem occurred before opening disputes on ebay. It will make the situation more complicated and obviously affect my selling performance.  For that reason, please ask me before bidding. Besides, if you need the tubes urgently, you have to pay an extra of $45.75 (taking 10-12 days) or $68.75 (taking 3-5 days) by DHL to all regions world-wide. Thanks a million

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 18.65 pounds. However, there may be no service to some locations. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 43-45 pounds taking 3-7 working days depending on your local customs. Please let me know soon before you pay. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

You are bidding for one tube TELEFUNKEN G73-R/ECC802S/12AU7/ECC82 black Coated NOS Plain Box with diamond logo on the bottom. I have some carton boxes with 52 pieces each so please order the number you want. These tubes were made for military purposes so they are deadly quiet, clear, detailed and dynamic. They sound like Telefunken ecc802s so they are suitable for those who are seeking for quick, clean and precise soundings. These are tested carefully on my TV-7 tube tester at the nos range and on my amplifier. They all work fine. The items will be shipped from Hanoi, Vietnam by Vietnam post at 28.65 pounds. It may take from 22-45 days due to Covid. If you need the tubes urgently, please pay an extra to use express services like DHL, FedEx... which costs about 63 pounds taking 3-7 working days depending on your local customs. Please let me know soon. Happy bidding. Thanks P/S: All the tubes are under one-month guarantee and return is accepted but buyers have to pay the returning fees. Video or photo testing will be sent if requested.

You are bidding for one Telefunken G73-R black coated specially designed for HP used for special purposes. They were made in Germany in 1960s. This type of tubes is deadly quiet with clear and clean sounds. They are quick, precise, dynamic and very harmonic. The tube was well tested on TV-7D/U and Avo ct160 at the NOS range. All the tubes from us are give one-month warranty since the time of arrival. There are many rare tubes in stock. Please request to meet your needs. Please ask before bidding. There are many types of raretubes in stock. Matched pairs and matched quads are available. Thanks P/S: The shipping service here is by Vietnam post taking 14-22 days depending on your local customs. For regions that Vietnam post is not available, I’ll use express services like DHL, FedEx or UPS express taking 3-7 working days. However you have to pay an extra for the fees and shipping insurance with track ($68 in total). Please request your shipping option if you need them urgently. Some locations to which Vietnam post is not available, I’ll use express services and buyer have to pay an extra of course. Thanks