125 Inches, Made In USA, Circa All structured data from the file and property namespaces is available under the. The program will alert the user when the temperatures have been exceeded for the typical components: wire (melting), insulation, jacket, crimp connections and solder. pdf (445475 bytes), 7591. Our platinum matching process consists of a 24 hour tube burn-in period followed by a. DOWNLOAD PDF. The Hickok gm numbers show only 65% of nominal for the EH and 93% of nominal for the JJ’s. 3 VAC & 5 VAC is requiered and that shows that the tubes are very matched, healthy. Part Numbers. Dan Bonham ws an Engineer at Magnatone who got patents on some of their "True Vibrato" tube technology and used it at his own company AGC in Van Nuys CA in the late 1960's. P-SAYJ20 39. Got meselfs some 7591A's to try out. Recently, the 7591 article was updated with coverage of the rel­a­tive­ly new Tung-Sol 7591A. B339 11 Tubes. The 7591A Tung Sol Matched Pair are reputed to be the bes sounding versions of the 7591 valve. The tube has a high power sensitivity and high efficiency and is especially designed for applications where high power output is required. Platinum matching process consists of a 24 hour tube burn-in period followed by a bias (plate) current measurement in milliamps. The Electro Harmonix 7591A tube is smooth, yet punchy, with a sweet harmonix finish. Unlike their standard 7581 vacuum tubes, the "A" version is rated for more power. 6LQ6=6JE6C Sylvania branded RCA used/good (75ma) $ 29. The octal base soon caught on for conventional glass tubes as well. At the end of their production runs, Sylvania was labelling the same big-bottle tube as a 6L6GC, a 7581A and an STR387. Metal tube. Platinum matching process consists of a 24 hour tube burn-in period followed by a bias (plate) current measurement in milliamps. 6C9_Maz is the Mazda 6C9, the 6C9_Fiv is the Fivre 6C9 and the 6C9 is the. Measuring 3 1/8" high from the bottom of the base to the top of the envelope, the JJ 7591s is about the same size as the JJ GZ34 / 5AR4 and JJ 6V6. Instead he used Russian 6P3S-E tubes. -The data sheets that resellers post with these tubes are a copy of the original 7581A ones from Tung Sol. Demonstration of testing a power amplifier output tube using an EICO 666 portable tube tester. Powerwise, they are in between a 6V6 and a 6L6GC. vacuum-tube-shop. TUBE, ELECTRO-HARMONIX 7591A MATCHED PAIR. Current production Electro Harmonix, Tung-Sol, Sovtek and Svetlana offer great sound and performance. If you find the tube in Europe, assume the USA code is correct. 25d 17h left (12/8, 20:08) From United States. Barczynski, who offered me a lot of diskspace online, I can put all my datasheets on the web. These were purchased new by Dave in the old days. Octal base. Another factor in matching output transformer impedance is the tube's 'desired' load impedance changes with its operating voltage. GE could easily have been about the same kind of monkey business. t = Triode Unit. 7591A Electro-Harmonix Power Tube Beam power tetrode used in vintage Ampeg and Gibson guitar amplifiers. The power supply is connected to the power mains with a power. eBay item number: 174785158110. In the Sansui the HT voltage is generated by a 180 V RMS secondary winding followed by the classic. 40 6418/548DX 9. Yes, you could sub 6V6's, but if it were me I'd go a step further and. - opens in a new window or tab. 6LQ6=6JE6C Sylvania branded RCA used/good (75ma) $ 29. The 6N3C / 6P3S Tube or 6pi3C is the Russian equivalent of the 6L6GC. You are likely to only find used ones or the odd pair in some out of the way place. 40 7643/E80CF 19. This set includes: (4) "Platinum Matched" Tung-Sol 7591A power tubes(2) Tung-Sol 12AX7 preamp tubes(2) Tung-Sol 12AU7W/6189 preamp tubesPlatinum Matched power tubes are tested and matched by the manufacturer for maximum performance and long tube life. I have a data sheet on the JJ. 6L6GC Comparison of Current Made Tubes. 7591 vs 7868 Tubes. of usable power at low B+ voltages. Some tube types end with an underscore (_) followed by some letters indicating the Brand or a number if the Brand is unknown. 6 out of 5 stars. Title: 7591 Author: Sylvania Subject: FP-2010-02-12 Created Date: 2/12/2010 10:27:21 PM. Electron tube Type: Brand: System: Data sheet; 7580W Eimac Q~ 7580W. 1 circuit resistance may be as high as 100,000 ohms. Shop our great selection of 7591A, 7868, 6GM5 vacuum tubes now. More on this soon. 7591A Tung-Sol - some stock on hand and more will be in stock soon. However, Sylvania also produced RCA coin-based 7591A tubes. 7591A Electro-Harmonix Power Tube Beam power tetrode used in vintage Ampeg and Gibson guitar amplifiers. By Sylvania. Brand: Electro-Harmonix. 50 each) Matching will become available after entering 2 or more tubes. Tube 7591 or Röhre 7591 ID3729, Beam Power Tube, Octal (Int. Check stock and pricing, view product specifications, and order online. This tube tests on the cusp, but still has many useable hours ahead. pdf (383632 bytes) TubeZone. A close relative of 6L6, KT88, KT90, KT120, KT150, they are interchangeable in many instances. 1 % distortion , Switchable 15 watts Triode, Ultra Linear 25 watts & 30 watts Pentode. I have OSX and Linux machines. pdf (863557 bytes) 7581A RCA (RC30) P 7551. They sound more like 6V6/6L6GC than EL84's except for the smoother. Technical Documentation. RCA describe the 7591 as designed for high quality audio amplification. Always on Hitachi 7591 7591A Vacuum Tube Valve For Your Univalve Lowtechelec. It is a high output audio power tube that is flexible and easy to design with. com was created by 2006 in collaboration with participating distributors as a service to support the authorized electronic components industry by giving users access to aggregated price and availability data for genuine parts from only authorized sources. GE could easily have been about the same kind of monkey business. Each tube sample used for comparison was chosen because it measured in the middle range of idle plate current draw at. Has anyone seen the data sheets for these two Electro Harmonix products? I know there was some talk here in this forum awhile back regarding the EH 6CA7's, it was said that they can not handle plate voltages over 450V? Did anyone actually see a data sheet? I need info on the EH 7591 as well as I need to retube another amp that uses the 7591. For other characteristics and typical operation, see 7591A. Abstract: 7199 tube ecc83 data 8417 tube 12AX7 ECC83 equivalent eel - 19 transformer ECC83 tube 7025 tube eel 19 transformer Text:. Scanned copy QUAD 606 power amplifier schematic. Maximum Heater-Cathode Voltage. The Electro Harmonix 6BM8 EH Power Vacuum Tube is a great sounding replacement & considering the rising costs of NOS 6BM8, it’s a really great value too. Learn More. Type: (PDF) Size 2. 50/matched quad. 6JE6A RCA used/good 1960's (91ma) $ 24. The Reflector factory logo and OTK inspection code are printed on the glass. Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Buy Electro-Harmonix 7591A Vacuum Tube, Matched Pair. Here are some examples and a list of common USA EIA codes. 12au7 Marconi Italiana. Between the cathode of each tube and ground, install a 390 ohm 5 watt resistor. Customer evaluation for "Tung-Sol 7591A". Powerwise, they are in between a 6V6 and a 6L6GC. eBay item number: 174785158110. The EH average is 11% lower and the JJ is 32% lower. 70 6B4G, 6L6, 6V6 P-T1615 53. mullard 12ax7/ecc83 mullard el84/6bq5 mullard. pdf (144900 bytes) 7581A General Electric P 7581A. com looking for recommendations for a new set of tubes for the MC225. Please see the substitutes at the top of the page for more details. After all, it does provide SE data already. Displaying products 1 - 1 of 1 results: Show: Sort: Tung-Sol 7591 - matched pair. 7591A Tung-Sol - some stock on hand and more will be in stock soon. GE 7868 NOS matched pairs $100. At the end of their production runs, Sylvania was labelling the same big-bottle tube as a 6L6GC, a 7581A and an STR387. Title: Receiving Tube Manual RC30 Author: RCA Subject: ASa-FP-2013-07-19 Created Date: 8/9/2013 12:23:29 AM. 70 7591A See Web E80CC See 6085 ECLL800 See 6KH8 5987/SC968B 11. See more ideas about vacuum tube, tube, vintage valve. 3 are branded RCA and 1 is branded Lowery(Codes are RCA and the look. Tube 7591 or Röhre 7591 ID3729, Beam Power Tube, Octal (Int. 1999-10-31 I discovered that scanning actual tubes is quite possible. TUBE, ELECTRO-HARMONIX 12AX7 GOLD PINS. 7591 Tubes. 6LQ6 Sylvania branded RCA gray plate NOS 1970 (67ma) $ 49. pdf (78613 bytes) 7586. Type: (PDF) Size 2. pdf (97687 bytes) 7591A: 7551. All prices are in U. Otherwise please inquirethank you. USA codes will always be in the form of 3 or 4 numerical digits. 3 are branded RCA and 1 is branded Lowery(Codes are RCA and the look. Beam Power Pentode Construction , Pf 9. 6JE6A RCA used/good 1960's (91ma) $ 24. Special tube for some types of vintage amplifiers. Quick change from 7591 to 6L6-GC or Russian 5881 (Scott and Fisher amplifiers) On these amps the cathodes of the 7591A's are usually tied together. pdf (445475 bytes), 7591. 8f6 2 Tubes. 7591 tube was originally introduced in 1959. 私の真空管アンプ製作記録. The box anode - face view. Most tube (valve) bases have some sort of key (as in the case of octal and loktal types) or other indication (such as a gap, as. The JJ 7591 is a great replacement for any 7591 tube position. I use the Tung-Sol 12AX7 New Production Preamp Vacuum Tube in the V1, first pre-amp gain stage in two of my hand built tube amplifier designs - a 30W with 3 12AX7s and a 20W dual channel with one 12AX7. Schematic to support 405 Article non inverting input stage modification. The 700-707 will give you a quality test and the ability to weed out the duds quickly and efficiently. 6AQ5/6005 NOS GE,RCA. CHS-6SN7W 1 Tube. QUAD 606 service data. Important note! There have been some cases where the new production 7591A tubes have had trouble in circuits using a very high value grid resistor - as vintage Scotts, Fishers, and others do. (2) 1967 Ampeg 7591A NOS Pair (never used) Matched Pair - Excellent Condition For Your Consideration, This auction is for (2) 1967 Ampeg 7591A NOS Pair (never used, only tested) Matched Pair. com looking for recommendations for a new set of tubes for the MC225. The once extinct 7591 tube is now available again. QUAD 34 Pre-amp schematic redrawn to support QUAD 34 Mods. This nice assortment of 6V6GT type tubes was tested for mutual conductance. 6MJ6 GE rebranded RCA NOS (70ma). If you find the tube in Europe, assume the USA code is correct. ) I'm sure there's a way to get it into the 18watt zone. I guess we can expand that to include the 6GM5 then. pdf (880358 bytes), 7591A. This high screen voltage was causing excessive current to be taken by the 6L6 output tubes, even at the reduced supply voltage obtained from the variac. 00 each Price is per tube Payable by Cash, EMT Russian 6N1P 6H5n / 6922 variants from $60. Pin 1 has no connection, theres no pin on the tube, so i used that to tie the screen resistor to. The JJ Electronic 7591 is a reliable and accurate reproduction of the classic tube. T200 PDF File. T21 PDF File. Type 7591 is quite different. Our tubes are always tested, matched and guaranteed. Out of the the box sound on a matched quartet, the Tung Sol 7591A reissue was almost comparable to the NOS 7591A with 200+ hours in a Fisher X-202 C integrated amp ("Professional Series Control Amplifier") from the 1960's. The 7591A Tung Sol Matched Pair are reputed to be the bes sounding versions of the 7591 valve. Back to the Tube Sales Page. I noticed that on a 6L6GC tube data sheet I looked at recently. Tung Sol 7591A beam-power tube. pdf (445475 bytes), 7591. Octal, IO) K8A, USA 1935 and Power/Output shown. CHY-5692 1 Tube. Featuring wide bandwidth Lundahl output transformers. We have a vast inventory of thousands and thousands of tubes. Its load resistance varies from 2500 to 4500 ohms with plate and screen voltage changes. Tube Substitutions. These are precisely matched at the factory and the results are marked on each set. New-Old-Stock (NOS) tube. - 8 Pin OCTAL Vacuum Tube Socket (1) Vtg NOS AMPHENOL USA amp radio 6sn7gt 7591a. Originally introduced by GEC in 1956, it became competition…. 6N7, an octal-based dual triode. Equipment Required. 19% z 1938 T 1940 R 1942 S 1944 H 1937 U 1939 x 1941 Y 1943 K 1945 V On Government tubes, the "E" was printed separately, typically below the date code. New (2) from $135. The EH average is 11% lower and the JJ is 32% lower. An octal tube is a vacuum tube that has an 8-pin base with an 11/16" diameter keyed locating prong called a spigot in the center. We have data from Sylvania who describe the 7591 as a power output tube that is capable of 43 Watts of output at very low distortion when operated in push-pull and Class AB1. I know that the JJ can take higher voltages. Tube matching is required when 2 or more tubes are operated in push-pull in an output circuit. 01 & FREE Shipping. RCA was claiming 30W for their 6L6-GC and 7027 despite the fact that their tubes had the old black nickel-steel plates. 50/matched quad. But with these voltages and biasings (15V Cathode biased & -22V fixed) power should be higher. Kopen 7591/7591A ELECTRO HARMONIX RoHS Beam Pentode Buizen Online op Electols aan competitieve prijzen voor onmiddellijke levering. Octal, IO) K8A, USA 1935 and Power/Output shown. All the tubs on the market today are to high and cannot find a data sheet on the Tung-Sol. Finally, a Tung-Sol option for the 7591A! Not many amplifiers use this tube, but those that do now have the option for an NOS sound that's easy on your. While the 7591 output tube is becoming more scarce and expensive, it is actually one of a family of three tubes with essentially identical characteristics. C3g 1 Tube. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. 7591/7591A 6L6/5881 Control grid (g1) Pin 6 Pin 5 Cathode (k) Pin 5 Pin 8 Other connections are the same. report this. Maximum Heater-Cathode Voltage. Elementary school students could not buy capacitors above 10uF 350V. 00 X 1616 GEC England Power Triode. I know that the JJ can take higher voltages. 6LQ6 Sylvania branded RCA gray plate NOS 1970 (67ma) $ 49. The Tube Data Charts list modern tubes that many testers cannot test. 8f6 2 Tubes. pdf (97687 bytes) 7591A: 7551. EL34 (6CA7) Data, Mullard Valves. The 7591 was introduced about 1960 by Westinghouse, and some small design change in 1963 led to a "A" suffix designation. Web DY80 See 1BX2 ECL86 See 6GW8 5977 8. New (Other) $99. These were purchased new by Dave in the old days. 7591 pinout 7591 pinout. We like this tube for everything from HH Scott amplifiers to the few musical. Check stock and pricing, view product specifications, and order online. Division St. Les tubes militaires sont sélectionnés et soumis à des tests. Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Octal, IO) K8A, USA 1935 and Power/Output shown. 7591 ElectroHarmonix MATCHED PAIR 7591EHmp $52. My main consern is the screen grid. 5,2012:UX12Aシングル、ロフチンホワイト型0. If you can't find what you need here, try Duncan's Tube Data Sheet Locator. Brand New 7591A Electro-Harmonix Vacuum Tubes - Matched Pair We only sell factory fresh tubes and NOT seconds as we are an authorized dealer for New Sensor (EHX) and JJ Testing and/or Matching ** INTERNATIONAL shipments typically take 3-6 weeks by our standard USPS First Class Mail but often take up to 3 months for delivery. Tube 7591 or Röhre 7591 ID3729, Beam Power Tube, Octal (Int. 7591 S is an octal power pentode with power of 19W. See more ideas about vacuum tube, tube, vintage valve. Finden Sie Top-Angebote für BRANDNEU Tung-Sol Neuauflage 7591A Platte aktuelle matched Quad (4) Vakuumröhren bei eBay. Important note - updated! There have been some cases where the new production 7591A (and 7868) tubes have had trouble. I received an email back that recommended : Preferred Series 7025/12AX7, JAN Philips ECG 5814A/12AU7, Electro-Harmonix 12BH7, Tung-Sol 7591A. Author: Maria Quiroz Created Date: 11/9/2005 2:45:44 AM. 0353 [email protected] 7591 pinout 7591 pinout. RCA describe the 7591 as designed for high quality audio amplification. Ham Call: WB0SND. There is a sort of fascination with the date codes that are found on tubes. Often seen as a metal tube, there's still some out there as WWII surplus. Triplett 3444 tube analyzer, digital plate current meter, for sale. Please see the substitutes at the top of the page for more details. SUBSCRIPTS FOR MULTI-UNIT TUBES: b = Beam Power Unit. of usable power at low B+ voltages. 7591A: pdf. Octal, IO) K8A, USA 1935 and Power/Output shown. 7189A, vox AC15, vox ac30, Matchless DC30, Matchless HC30, EL84, dr z carmen ghia, Dr Z maz 38, Dr Z maz 18, Dr Z monza, Dr Z mini z, Dr Z Stang Ray, Dr Z Z Wreck, Train wreck amplifiers, Orange Tiny Terror. I am trying to find a tube to put in a Heathkit AA-100 amp and the origional 7591 just fits in the case. com looking for recommendations for a new set of tubes for the MC225. T125 PDF File. Check stock and pricing, view product specifications, and order online. Originally introduced by GEC in 1956, it became competition…. pdf (383632 bytes) TubeZone. Read honest and unbiased product reviews from our users. QUAD 405 input stage. 1999-05-06 Thanks to Ryszard J. Here's the data sheet:. 3 are branded RCA and 1 is branded Lowery(Codes are RCA and the look. Back to Tube Data Page. Pin 1 has no connection, theres no pin on the tube, so i used that to tie the screen resistor to. Tubes militaires anciens de la série octal. The classic information, on early RCA tubes in particular, is Bro. ) I'm sure there's a way to get it into the 18watt zone. Jet-Amplifier J12-D Ampl/Mixer Ampeg Portaflex, build 1962 ??, 1 schematics, 4 tubes, United States of America , pictures, semiconductors, Audio Amplifier or. Measurement from base to the top of the glass (pins not included in measurement): Slightly under 3". QUAD 405 input stage. This 19 Watt pentode has been used in a variety of amplifiers including Hi-Fi amps and Ampegs. The Tube Data Charts list modern tubes that many testers cannot test. Vintage Electronic PartsAll vintage electronic parts and smalls are 100% guaranteed to arrive as described and work as intended. These tubes have gray plates and halo getters with triple supports. Division St. Find the wire connecting between the two cathodes and remove it. 购物上 eBay, 尽享 GE Vintage Electronics Parts & Accessories 的超值优惠! 您可在 eBay 找到各式 GE Vintage Electronics Parts & Accessories 商品, 不论全新或二手, 应有尽有. Mixed lot of 100+ Loose Metal Vacuum Tubes. Without cathode capacitor we would get Av = 24. Besides, 76 is a driver tube. 1999-10-31 I discovered that scanning actual tubes is quite possible. pdf (445475 bytes), 7591. security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions. Our tubes test STRONG!. 7591A Tube List. The 2A3-40W showed as having the best sound in the group of power triodes. PAIR of NOS RCA 7591A TUBES TEST EXCELLENT-1976. But there is a small problem. I know that the JJ can take higher voltages. CK5670 1 Tube. Measurement from base to the top of the glass (pins not included in measurement): Slightly under 3". I am working on posting the RCA HB-3 Tube Handbook on line on this. Due to its rugged construction and conservative ratings, it is the most reliable current production EL84 type available for use in Vox AC. We have data from Westinghouse who describe the 7591A as a power output tube that is capable of 45 Watts of output at very low distortion when operated in push-pull and Class AB1. I know they are both military grade versions of the 6L6 but there may be a difference is bias characteristics. 6LQ6=6JE6C Sylvania branded RCA used/good (75ma) $ 29. (OT-151 & OT-225) They both use 7591A tubes @ 365 & 430 volts respectively giving 20 and 30 watts. 82) Posted by era on 2000-11-08, 05:43:16 (194. com looking for recommendations for a new set of tubes for the MC225. Check out our vacuum tube pin selection for the very best in unique or custom, handmade pieces from our shops. Designed as a class B amplifier for push-pull circuits. Now if you want a little less power and an earlier breakup you can have it!. 6LQ6 RCA gray plate used/strong 1960's (106ma) $ 29. Each tube in this comparison was installed in the same custom-built, fixed-bias single-ended guitar amplifier in order to obtain the voltage gain measurements and conduct listening tests. One significant difference vs. Cautionary Tubes - these are very hard to find. MSRP: Now: $56. Not all straight el-84's can sub for 7189A's due to the plate voltage differences. Until the JJ EL844 came on the scene in 2011 there really were no substitute tubes for EL84 / 6BQ5 tubes. Maximum Heater-Cathode Voltage. Buy Electro-Harmonix 7591A Vacuum Tube, Matched Pair. f33 gz34 RCA. パソコンとディスプレイを接続する、D-Sub15ピン(ミニ)ケーブル。【送料無料】(まとめ)エレコム RoHS準拠D-sub15ピン(ミニ)ケーブル ブラック 10m CAC-L10BK/RS 1本【×3セット】. pdf (671272 bytes) 7581A Tung-Sol P 7581A. This video is to perform a test in 3 tubes sylvania 7591 where a test in 6. I guess we can expand that to include the 6GM5 then. 7591 vs 7868 Tubes. 00/pair-2 x new JJ's @ $50. This is a very nicely manufactured tube at a low price. It is a power pentode (not beam tube) quite similar to the EL34, but with Pa=19W maximum only, heater current 0,8A. 95 P-SAYJ-SHORT Converts 7591A P-SAYJ7591 39. Demonstration of testing a power amplifier output tube using an EICO 666 portable tube tester. other dual triodes like 6SN7, 12AX7, 12BH7, and so on, the tube has a common cathode for both sections. Here's the data sheet:. 6N7, an octal-based dual triode. The octal base soon caught on for conventional glass tubes as well. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. RCA describe the 7591 as designed for high quality audio amplification. QUAD 34 Pre-amp schematic redrawn to support QUAD 34 Mods. We have an exciting inventory of NOS and Used Vintage vacuum tubes for all forms of radio and television Broadcasting and Receiving applications. The Trusted Source for Authorized Inventory. Les défaillances sont interdites, car stratégie oblige. Of course, most of the equipment in the picture isn't part of the test!. Manufactured in the famous Reflektor plant in. ) I took from them some 7868 for my X-100B (NOS Philips Matched quad). Brand New Tung-Sol Reissue 7591A Plate Current Matched Pair (2) Vacuum Tubes | eBay. This 19 Watt pentode has been used in a variety of amplifiers including Hi-Fi amps and Ampegs. Large bottle 90mm high. This is especially important when the circuit is a fixed bias circuit and the tubes are operated at or even a little. 無料ラッピングでプレゼントや贈り物にも。逆輸入並行輸入送料込。真空管 ギター・ベース アンプ 海外 輸入 7591A 6EU7 12AX7 12AU7W 【送料無料】Tung-Sol Tube Upgrade Kit For Gibson Duo-Medalist Amps w/7591A 6EU7 12AX7 12AU7W真空管 ギター・ベース アンプ 海外 輸入 7591A 6EU7 12AX7 12AU7W. Tung Sol 7591A beam-power tube. T200 PDF File. No resistor modification is necessary for this tube! True Plug & Play. 50/matched quad. Ratings are identical, and the only electrical differences are very, very minor differences in interelectrode. Quick change from 7591 to 6L6-GC or Russian 5881 (Scott and Fisher amplifiers) On these amps the cathodes of the 7591A's are usually tied together. Bass Guitar Preamp Design. 1 answers I would like to find out the height of the Tung-Sol 7591A from the base of the tube to the top. Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Le data de JJ pour la 7591 est très très (trop) "light". This set includes: (4) "Platinum Matched" Tung-Sol 7591A power tubes(2) Tung-Sol 12AX7 preamp tubes(2) Tung-Sol 12AU7W/6189 preamp tubesPlatinum Matched power tubes are tested and matched by the manufacturer for maximum performance and long tube life. The data sheet says load resistance is 3k, 6. 1: Re: 7868 (10. I use this program to calculate the temperatures inside of tube amps where the PC board has burned. Otherwise please inquirethank you. TUBE DATA CHARTS. The octal base soon caught on for conventional glass tubes as well. 8f6 2 Tubes. Demonstration of testing a power amplifier output tube using an EICO 666 portable tube tester. 6JE6A RCA used/good 1960's (91ma) $ 24. The once extinct 7591 tube is now available again. Vintage Electronic PartsAll vintage electronic parts and smalls are 100% guaranteed to arrive as described and work as intended. The TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. The JJ 283 is an all tube stereo preamplifier, intended to amplify audio signals from all types of MM cartridges as well as MC cartridges with an output voltage of more than 0. 12au7 Marconi Italiana. New (2) from $135. Taylor Tubes. Double checked in my 1964 SAMS Tube Substitution Handbook and the only sub mentioned there was a 7591A for a 7591 (and not vice-versa. 6C9_Maz is the Mazda 6C9, the 6C9_Fiv is the Fivre 6C9 and the 6C9 is the. 20160822_170835 by Johnniev2007, on Flickr. KyteLabs InfoBase - Electron Tubes & Valves Data: Last modified: 2016-11-20 (18645). The second reason is not quite so obvious, but very important if you want your system to accurately reproduce low bass frequencies in a timbrally accurate manner, whether it is from a Fender Mustang electric bass played through an Ampeg GS-12R equipped with 7591A output tubes, an upright acoustic bass, or even a full-sized church organ with 64. 1999-10-31 I discovered that scanning actual tubes is quite possible. Vacuum Tube Pinouts. 7591A (vacuum tube)‎ (3 F) 7AK7‎ (1 P, 2 F) C CV4501‎ (1 F) E -Labeled Vacuum Tube,Telefunken RENS 1294, WWII Era (14825825061). Always on Hitachi 7591 7591A Vacuum Tube Valve For Your Univalve Lowtechelec. An octal tube is a vacuum tube that has an 8-pin base with an 11/16" diameter keyed locating prong called a spigot in the center. 2ma Gm=9900 branded RCA Matched on Amplitrex Vplate = 300 Vscreen = 300 Vgrid = -10 Good Ma range 50-60 Good Gm range 10,000 - 11,000 Recommended for AUDIO GUILD CORP BONHAM 330 1960'sAmpeg Gemini II G-15Ampeg Reverberocket II 1960'sMcIntosh 225Mcintosh MA230 early 60'sMcIntosh MAC-1500. TUNGSOL 7591 MATCHED QUAD. pdf (880358 bytes), 7591A. 12ax7 Disclaimer Submit. Brand New 7591A Electro-Harmonix Vacuum Tubes - Matched Pair We only sell factory fresh tubes and NOT seconds as we are an authorized dealer for New Sensor (EHX) and JJ Testing and/or Matching ** INTERNATIONAL shipments typically take 3-6 weeks by our standard USPS First Class Mail but often take up to 3 months for delivery. ) when ordering (no odd-quantity groups, please). 無料ラッピングでプレゼントや贈り物にも。逆輸入並行輸入送料込。真空管 ギター・ベース アンプ 海外 輸入 【送料無料】Brand New Current Matched Quad (4) 7591A Electro-Harmonix Vacuum Tubes真空管 ギター・ベース アンプ 海外 輸入. 1 answers I would like to find out the height of the Tung-Sol 7591A from the base of the tube to the top. Not all straight el-84's can sub for 7189A's due to the plate voltage differences. BRAND NEW TUNG-SOL Reissue 7591A Plate Current Matched Quad (4) Vacuum Tubes - £131. The Tube Data Charts list modern tubes that many testers cannot test. Top Rated Plus. thetubestore. Soundwise, they are similar to an EL84 in that they have a lot of gm for a power tube so it doesn't take much to drive them, and when you do, they are juicy and harmonically rich sounding. 7591 pinout 7591 pinout. Substituting for the 7591A. They can also be used in place of the following tubes. Scanned copy QUAD 606 power amplifier schematic. Notable change is the cathode bias setup on the 6V6GT versus the 7591A. A handful of contemporary makers still offer amps with KT66 and 6550 tubes, and a few even manufacture unusual designs using more esoteric tube types, but you'll see one of those first four in a good ninety-nine percent of amps you encounter today. At the end of their production runs, Sylvania was labelling the same big-bottle tube as a 6L6GC, a 7581A and an STR387. I decided to build a Premier Twin 8 for a harp amp. Used Tested Tubes All tubes in this section are tested prior to shipping (where possible). Please specify matched tube grouping (ie. These are an amazing little tube and have a wide range of uses. 50/matched pair, $139. While the 7591 output tube is becoming more scarce and expensive, it is actually one of a family of three tubes with essentially identical characteristics. The 700-707 will give you a quality test and the ability to weed out the duds quickly and efficiently. Equivalents. 7591 Tubes. : H/F means "Heater or Filament" voltage and current specifications. 7591 tube was originally introduced in 1959. As mentioned on the first page of this article Tim wanted to use 7591A tubes in the amplifier but that ran him over budget. 50 each, $69. Vacuum Tube Pin Numbering. Ils doivent fonctionner longtemps. Search and identify audio tubes. I wrote an email to thetubestore. Division St. An initial letter (A through L, including I) gives month, followed by the last digit of year. Top choice for any high-volume tube vendor or hobbyist that is testing a large number and wide variety of tubes. 00 each Price is per tube Payable by Cash, EMT Russian 6N1P 6H5n / 6922 variants from $60. Yes, you could sub 6V6's, but if it were me I'd go a step further and. Brand New Tung-Sol Reissue 7591A Plate Current Matched Pair (2) Vacuum Tubes | eBay. 7591 Tubes. All the tubs on the market today are to high and cannot find a data sheet on the Tung-Sol. Buy from the experts and avoid hassle! Brand New Tung-Sol Reissue 7591A Plate Current Matched Pair (2. There is a sort of fascination with the date codes that are found on tubes. All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. pdf (383632 bytes) TubeZone. Often seen as a metal tube, there's still some out there as WWII surplus. Notable change is the cathode bias setup on the 6V6GT versus the 7591A. Electro-Harmonix 7591A Tubes (Fisher, Scott Stereo) are 5 each tubes #7591A made by the Electro-Harmonix Company made in Russia. pdf (880358 bytes), 7591A. 6k for push pull. On the NOS 7591 they say its best to connect both pins of the screen 4 & 8 together unless your running ultralinier @ 40% tap. Vacuum tubes by model number 7591A (vacuum tube)‎ (3 F All structured data from the file and property namespaces is available under the Creative. I ordered the tubes in the correct quantity. Back to Tube Data Page. - According to the data sheets, both the Tung Sol 7581A and the JJ 7027 have a maximum plate voltage of 500V. Orlando, FL 32806 | Local #: (407) 481-9994 - Toll Free#: (877) 307-1414. 12ax7 Disclaimer Submit. The Trusted Source for Authorized Inventory. Tube matching is required when 2 or more tubes are operated in push-pull in an output circuit. Calculate Shipping. 7591 pinout 7591 pinout. (F) means "Filamentary", and (H-K) means "Heater-Cathode. Please see the substitutes at the top of the page for more details. 00 X 1616 GEC England Power Triode. This is especially important when the circuit is a fixed bias circuit and the tubes are operated at or even a little. 6V6G ST shape US brands. -The data sheets that resellers post with these tubes are a copy of the original 7581A ones from Tung Sol. 035 amps or 35mA. 5u4gb Philips. 3 are branded RCA and 1 is branded Lowery(Codes are RCA and the look. 7591A has two screen leads pin 4 and pin 8. 00/pair Also have 10 wonderful sounding. Web DY80 See 1BX2 ECL86 See 6GW8 5977 8. Tubes will be bubble wrapped,packed tightly and well marked fragile! To arrive safe to you! From $25. Ham Call: WB0SND. Technical Documentation. Bonham Stereo 330 Tube Amplifier $400 - Arleta CA. Another spot to look, which is especially useful if you're looking for replacement types and tubes with similar bases or characteristics, is the NJ7P tube database. C3m 1 Tube. Please enter the tube number: This database contains data on thousands of tubes. Find many great new & used options and get the best deals for Brand New Current Tested Electro-Harmonix 7591A Vacuum Tube at the best online prices at eBay! Free shipping for many products!. Matching Tubes. In addition to the data I have scanned and posted, if you're looking for data on a particular tube you should visit TSDL on Duncanamps website, or Frank's tube data. transconductance of the 6V6, and therefore a higher power sensitivity. QUAD factory matched 6L6 6L6GC-TK Telefunken Elektroakustik tubes. The data in the HB-3 also included operating curves and other good details. Title: KT88 Author: GEC England Subject: JA-FP-2000-10-01 Created Date: 10/1/2000 7:37:10 PM. The Trusted Source for Authorized Inventory. Back to Tube Data Page. GE could easily have been about the same kind of monkey business. Browse the tubes collected so far, and if you know of any not archived yet, help by submitting photos and informations. Or in Ultra linear configuration, an output of 32 Watts with a 400 Volt HT. 20160822_170835 by Johnniev2007, on Flickr. If there connections on pin 8, move them to pin 4. Also, used in tube hi-fi equipment made by Fisher, Scott, and Harmon-Kardon. Looking for 12AX7 preamp tubes too? Feel free to check out our 12AX7 product page. Electro-Harmonix 7591A EH's are available in platinum matched sets. I know that the JJ can take higher voltages. I look forward to how the quartet sounds after 100. 7591A tube mfr? Page 1 of 1 [ 20 posts ] Previous topic | Next topic : Author Message; wazz Post subject: 7591A tube mfr? Posted: Sep Mon 10, 2012 2:07 am. (My Sylvania manual would need to be dug out to double check with it. The same was true for power tubes, and at best, a used 42 was a good reward. In Table 1 an overview of values can be found for a SRPP with different kind of tubes. Beam Power Pentode Construction , Pf 9. A címben szereplő műszerem kapacitás mérés közben ment tönkre. Manuals and free owners instruction pdf guides. T200 PDF File. But now we are going to change them to type 7591A. Please enter the tube number: This database contains data on thousands of tubes. Electro-Harmonix 7591A EH's are available in platinum matched sets. The working face of the anode has the extra heat sinking fins. 6JE6A RCA used/good 1960's (91ma) $ 24. Vacuum tubes by model number 7591A (vacuum tube)‎ (3 F All structured data from the file and property namespaces is available under the Creative. Condition: it is test gear, in excellent condition, it has been cosmetically restored to i. AMPTATA V8 VACUUM 7591 7591A TUBE TESTER BIAS CURRENT mA CHECKER OCTAL MATCH and a"Tube Test Data" booklet for Heath Model TC-1& TC-2 for use with roll chart 1-1. New (Other) $99. EL84/6BQ5 REISSUED. Vintage Penta Laboratories PL-6549 Pentode Vacuum Tube All structured data from the file and. Division St. Find your favorite audio tubes, from famous to obscure, and discuss them with other audio enthusiasts. -The data sheets that resellers post with these tubes are a copy of the original 7581A ones from Tung Sol. 7591A (vacuum tube)‎ (3 F) 7AK7‎ (1 P, 2 F) C CV4501‎ (1 F) E -Labeled Vacuum Tube,Telefunken RENS 1294, WWII Era (14825825061). These are precisely matched at the factory and the results are marked on each set. Back to the Tube Sales Page. This is the only 7591A or 7868 tube that I'll be handling at this time. The 7591A Tung Sol Matched Pair are reputed to be the bes sounding versions of the 7591 valve. Oh well, *my type* probably doesn't need that program anyway, since I have an RCA HB-3 data book set that covers a little bit of everything - though it is missing the transmitting tube volume, if there was a transmitting tube volume. 0 Pf Ultra-Linear Pentode Plate and Grid No. RCA RC10 tubemanual Note that the newElectro-Harmonix 7591A is now available,and it does not requireany rewiring to use. Power tubes NOS and tested used - the best money can buy! Log-in. One significant difference vs. The box anode - face view. Please see the substitutes at the top of the page for more details. 50/matched quad. Made in Russia. Platinum matching process consists of a 24 hour tube burn-in period followed by a bias (plate) current measurement in milliamps. For other characteristics and typical operation, see 7591A. Manuals and free owners instruction pdf guides. パソコンとディスプレイを接続する、D-Sub15ピン(ミニ)ケーブル。【送料無料】(まとめ)エレコム RoHS準拠D-sub15ピン(ミニ)ケーブル ブラック 10m CAC-L10BK/RS 1本【×3セット】. Cautionary Tubes - these are very hard to find 7591/7591A - legend has it that these otherwise excellent tubes were all bought up by an oriental buyer who toured the USA paying cash for all of them he could find, then disappearing. Price: $135. The classic information, on early RCA tubes in particular, is Bro. Initial date of my Electron tube Data sheet homepage @ www. Free delivery and returns on eligible orders. Tube matching is required when 2 or more tubes are operated in push-pull in an output circuit. TUBE, ELECTRO-HARMONIX 12AX7 GOLD PINS. The 7355 was one of the later high-Gm tubes, it has about twice the. 7730 2 Tubes. The Electro-Harmonix 7591A EH Power Vacuum Tube replaces the Sovtek 7591XYZ. CHS-6SN7W 1 Tube. Schematic to support 405 Article non inverting input stage modification. 50) Hi, You could find 7868 at Antique Electronic Supply (www. One significant difference vs. Product Data. The JJ Electronic 7591 is a reliable and accurate reproduction of the classic tube. CK5814A 1 Tube. They have a higher maximum plate voltage and plate dissipation than standard 6BQ5 / EL84 tubes. ) I'm sure there's a way to get it into the 18watt zone. 00/pair-2 x new JJ's @ $50. The JJ239 was developed on request from customers from Southeast Asia and Japan after the 2A3-40W tube was introduced. Kopen 7591/7591A ELECTRO HARMONIX RoHS Beam Pentode Buizen Online op Electols aan competitieve prijzen voor onmiddellijke levering. At the end of their production runs, Sylvania was labelling the same big-bottle tube as a 6L6GC, a 7581A and an STR387. Posted September 22, 2011. pdf (880358 bytes), 7591A. Ham Call: WB0SND. パソコンとディスプレイを接続する、D-Sub15ピン(ミニ)ケーブル。【送料無料】(まとめ)エレコム RoHS準拠D-sub15ピン(ミニ)ケーブル ブラック 10m CAC-L10BK/RS 1本【×3セット】. Quick fixes for 7591A amps. 71) Posted by The Bear on 2009-01-21, 16:27:18 (71. If you have an old Fisher or Scott tube receiver, or other amplifier, the new reissue Tung-Sol 7591A power tube won't break the bank, and will keep them sounding great. Looking for 12AX7 preamp tubes too? Feel free to check out our 12AX7 product page. Well, as an kind of example, Ampeg used both the 6V6GT and the 7591A an output tube in their early 1960's push-pull ReverbRocket amps. I am working on posting the RCA HB-3 Tube Handbook on line on this. Type 6(Pi)3S is also about the same, but with lower Pa = 19W, thus about the same as the first 6L6s - lower than 5881 (little data obtainable). Top choice for any high-volume tube vendor or hobbyist that is testing a large number and wide variety of tubes. Pacific TV Tube Catalog We accept Paypal for payment only. The 6N3C / 6P3S Tube or 6pi3C is the Russian equivalent of the 6L6GC. This video is to perform a test in 3 tubes sylvania 7591 where a test in 6. 7868/7591's are my favorite power tubes. 12AT7WC JAN Sylvania. 0353 [email protected] Some tube types end with an underscore (_) followed by some letters indicating the Brand or a number if the Brand is unknown. The tube has a high power sensitivity and high efficiency and is especially designed for applications where high power output is required. pdf (383632 bytes) TubeZone. Vacuum tubes by model number 7591A (vacuum tube)‎ (3 F All structured data from the file and property namespaces is available under the Creative. This 19 Watt pentode has been used in a variety of amplifiers including Hi-Fi amps and Ampegs. eBay estimates are NEVER correct for International ** All orders are. Substituting for the 7591A. Vintage Penta Laboratories PL-6549 Pentode Vacuum Tube All structured data from the file and. Title: 7591 Author: Sylvania Subject: FP-2010-02-12 Created Date: 2/12/2010 10:27:21 PM. Rare Bonham / Audio Guild Stereo Tube amp in Arleta CA for $400. Tung-Sol Does it Again! Introducing the Impressive 7581A Vacuum Tube. 7591A Tube List. Also, used in tube hi-fi equipment made by Fisher, Scott, and Harmon-Kardon. In addition to the data I have scanned and posted, if you're looking for data on a particular tube you should visit TSDL on Duncanamps website, or Frank's tube data. Got meselfs some 7591A's to try out. Latest tubes updated. Most tube (valve) bases have some sort of key (as in the case of octal and loktal types) or other indication (such as a gap, as. 6JE6A RCA used/good 1960's (91ma) $ 24. The 2A3-40W showed as having the best sound in the group of power triodes. All 4 of these tubes were made in the U. Reverberocket 2 GS-12R Ampl/Mixer Ampeg Portaflex, build 1960 ??, 1 schematics, 5 tubes, United States of America , pictures, semiconductors, Audio Amplifier. 0 Pf Ultra-Linear Pentode Plate and Grid No. For other Taylor tubes, see the entire 1945 Taylor Tube Catalog in PDF format (note, 1. 636-939-9190. Please see the substitutes at the top of the page for more details. 発行者:相馬 孝志 新 規:Jun. Octal base. See more ideas about vacuum tube, tube, vintage valve. pdf (383632 bytes) 7591S : JJ P 7591S. Featuring wide bandwidth Lundahl output transformers. Most tube (valve) bases have some sort of key (as in the case of octal and loktal types) or other indication (such as a gap, as. All the tubs on the market today are to high and cannot find a data sheet on the Tung-Sol. 1 % distortion , Switchable 15 watts Triode, Ultra Linear 25 watts & 30 watts Pentode. This 13-page brochure goes into (necessarily) exhaustive detail on prewar product. Our platinum matching process consists of a 24 hour tube burn-in period followed by a. 24-Hour Burn-In (add $1. p = Pentode Unit. Matched versions of this tube use Apex Matching. klausmobile. CK5670 1 Tube. Without cathode capacitor we would get Av = 24. 00/pair Also have 10 wonderful sounding. pdf (144900 bytes) 7581A General Electric P 7581A. Title: 7591 Author: Sylvania Subject: FP-2010-02-12 Created Date: 2/12/2010 10:27:21 PM. 在 eBay 安心购物!. No resistor modification is necessary for this tube! True Plug & Play. 8417 5 Tubes. GE could easily have been about the same kind of monkey business. But with these voltages and biasings (15V Cathode biased & -22V fixed) power should be higher. We have a vast inventory of thousands and thousands of tubes. 7591A sorte de 6L6 doppée. The Retro225 7591A / 5B/255M > 0. May 14, 2017 - Because hey TUBES!. パソコンとディスプレイを接続する、D-Sub15ピン(ミニ)ケーブル。【送料無料】(まとめ)エレコム RoHS準拠D-sub15ピン(ミニ)ケーブル ブラック 10m CAC-L10BK/RS 1本【×3セット】. 25d 17h left (12/8, 20:08) From United States. This military spec Western Electride 717A tube is a pentode that can also be wired as a triode (like in the Yamamoto A08 tube amplifiers). TUBE, JJ, 6L6GC, SINGLE. RCA Recieving Tube Manuals RC23 & RC25 confirm. In the Sansui the HT voltage is generated by a 180 V RMS secondary winding followed by the classic. If you have an old Fisher or Scott tube receiver, or other amplifier, the new reissue Tung-Sol 7591A power tube won't break the bank, and will keep them sounding great.