6j7 tube substitute. Made in the Svetlana plant.

6j7 tube substitute ElectronTubeStore. When I looked at the tube This is a list of Soviet and Russian tubes and their American/European Equivalents. 3V. Tweed early Princeton. FAQ. pdf (75369 bytes) (fr) 6J7 Tung-Sol p 6J7. Title: 6SJ7 6SJ7GT Author: RCA Subject: PM-JA-FP-2004-03-20 Created Date: 3/20/2004 11:03:01 PM I've now fitted three of these NOS broadcast tubes in my preamp (one in the remaining position feeding the line stage and two feeding the phono stage section), and they are every bit as good as the 5691s, perhaps being marginally sweeter in the midrange, but not at all in a lush or 'syrupy' sense. pochago New Member. By chance I acquired a large pile of old glass (GT) Preamp tubes: three 6J7, one 6N7 Output tubes: two 6L6 Rectifier: 5U4 Controls: Instrument Volume, Microphone Volume, Bass and Treble Speakers: one 12" field-coil speaker Output: approximately 20 watts RMS Guitarists playing anything other than big-band jazz or Western swing tend to approach pre-rock-and-roll tube amps with reservation. Type Substitutes Base Diagram; 7J7: 7S7, 7S7: Web References: 7J7 (RCA (HB3)) @ Franks Electron Tubes 7J7 (Sylvania) @ Franks Electron Tubes 7J7 (Tung-Sol) @ Franks Electron Tubes 7J7 @ RadioMuseum. I've now been experimenting with all sorts of 6SL7s for the last three The detector stage discussed here uses a 6SQ7 duo-diode/triode tube and performs three separate functions. 95 . There is another good use for the 6J5. And yes it would be a travesty to rewire for 6SA7. pdf (212802 bytes) 6J7 Sylvania p 6J7. Please check the OddMix Vacuum Tubes listing as a few of some of the types are usually available. some say that 6SJ7 is/are similar to the EF86. The big octal 6SL7, 6SN7 tubes are my favorite for hi fi. La lampe 6J7 - tube 6J7. The first section lists receiving tubes and their substitutes. Type Substitutes Base Diagram; 6J7G: 6W7, 6K7, 6S7, 6U7, 6J7, 6J7GT, 6J7GTX, 6J7MG, 6W7G* Notes: * - Parallel filaments: Web References: 6J7G (AWV) @ Franks Electron Tubes 6J7G (Sylvania) @ Franks Electron Tubes 6J7G (Tung-Sol) @ Franks Electron Tubes Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Please login or register. Shorted oscillator section of the tuning capacitor C-6. This is a very useful section because of the large amount of foreign-made equipment being sold in this country Substitutes may be used freely for the extreme majority of all circuits. Lot of 4Russian 6x7 tube is a direct substitute for 6J7 and EF36 Sharp Cutoff Pentode. The second section lists IMVHO - there are no "wrong" tubes just tubes used in the wrong place. Type Substitutes Base Diagram; 6EJ7: 6EH7, 6GK7, 6HM6 §, 6HT6§, 6JC6A§, 6JD6§ Notes: § - May not work in all circuits: Web References: 6EJ7 (Sylvania) @ Franks Electron Tubes 6EJ7 (Tung-Sol) @ Franks Electron Tubes 6EJ7 @ RadioMuseum. ) Title: 6J7 Author: RCA Subject: FP-1999-10-10 Created Date: 10/10/1999 4:25:25 PM The converter stage discussed here uses a 6A8 pentagrid tube. 1620 might work a little but not well, that's an industrial 6J7. Open or leaking oscillator grid capacitor C-19. pdf (78272 bytes) 6J7 RCA p 6J7. Both tubes can easily substitute, but 6j1P has a high-frequency pentode valve compared to the 6j1 tube. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Lampe présente dans 51 appareils décrits dans la base de données du Grand Livre de la TSF. I haven't seen any metal 6P5s, L63s. Ship to: United States, Vendeur: totempole_999 ️ (1. Best sounding 6SN7 replacement there is, in my experience. A. References: Data-sheet, 1040 & 1043. The thin metal tube envelope is 25 mm in diameter and excluding the IO base pins, is 51 mm tall. See also 1936 Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. I will combine multiple items for shipping. ) Title: 6EJ7 Author: Tung-Sol Subject: FP-2004-04-04 Created Date: 4/4/2004 1:03:00 PM The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 50 mm tall. This exhibit was first unwrapped for this entry and all the metal work is bright with no sign of corrosion. 4 on miniature to F-pin on subminiature. See also 6J7 almost the same valve in operation. 00. 6SK7 Application Data: No information available. The lowly RCA is now in fourth place behind pairs of Raytheon 6J5-GT's, Marconi L 63's and Genalex L 63's. Another option is to use adapter and use EF86 as replacement. For the product: 6SJ7. The same mostly for 6C5. (Even for triode. Testé sur le testeur de tube numérique Amplitrex AT1000 Advance. (Additional substitutes may be obtained by cross-referencing the American substitutes given in Section 6 with listings in Section 1. I suspect the reason that some 6SJ7 Components from GENERAL ELECTRIC In Stock, Order Now! Same Day Shipping, 2-Year Warranty - , TUBE, ELECTRIC, VACUUM, 8 PIN, SOCKET MOUNT, 0. American tube and want to know what foreign type will serve as a substitute, refer to Section 5. The 6SJ7, which we Also planning to build Poultrygeist's open baffle speaker design based on the quarter-wave ob over h frame sub idea. Tube 6Ж7 or Röhre 6Ж7 ID18865, Vacuum Pentode, Octal (Int. TUBES Substitute Tube -- Substitute Tube -- Substitute 00A 01A 0A2 01B - 0A2WA - 0A3 0A4 OB2 OB2WA - OB3 0C3- OD3 0E3 0G3 0Y4 0Y4G OZ4 OZ4A OZ4G 1A3 1A4 1A4P 1A4T 1A5 1A6 1A7 lAB6 lAC5 lAC6 01A, 200A, 70DA , 40 00A, 00AA, 01B 40, UX201A, 501A OB2, 6073. Both tubes are seldom used in hifi applications as pentode is high in odd harmonic. Equivalent to The octal 6J7 has the same electrical characteristics (except that the 77's screen voltage is 100V max. That's why I prefer tubes like 6N7 as drivers for small output tubes. Substitute a known good one. Post subject: Good substitute for 6ji tubes. However truly starved, a triode will get some changes in the characteristic: there is a maximum to the emission, and the distortion of third harmonic starts to be seen. 6J7 Data sheet links: Duncan''s Amp Pages: Vade Mecum s. For your convenience, this handbook is divided into seven sec­ tions. org: Type 7J7 Triode - Heptode Converter MECHANICAL DATA. We would like to show you a description here but the site won’t allow us. Type Substitutes Base Diagram; 6EJ7: 6EH7, 6GK7, 6HM6 Within a pair of weeks I go to the biggest Hamfest here in Italy a friend bring me some tubes from East Europe and I would like to know if the russian 6Ж8 tube is a good substitute for the 6SJ7 tube ''Èñòîê2''. I can then use a lower gain, more rugged tube (e. Choice is limited to available NOS for 6SC7/SC7GT and to recent Russian-made 6SL7s. Search. Tube Interchangability Reference. Use two 2C22 to replace one 6SN7. 150C2W-6626. A handy table 6J7: 6W7, 6K7, 6S7, 6U7, 6J7G, 6J7GT, 6J7GTX, 6J7MG, 6W7G*, 1223, 1620, 7000: Notes: * - Parallel filaments: Web References: 6J7 (RCA) @ Franks Electron Tubes 6J7 (RCA) @ Tube Interchangability Reference. i'd suggest you shock mount the socket with some rubber o-rings or something similar. 7 watts (tube supports max of 2. 6SJ7 tube recommendation needed . 5693 came on the top of the list of various tube that I’ve tried. Main menu. (the 6J7 has a grid1 top cap, you need to run screened wire up to it and sometimes even solder a gridstop to the select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 6/2(1-500) 642(501 Preamp tube is a 6SC7 or 6SC7GT (in earliest versions) or 6SL7 (later version). can take higher voltages than NOS also. Welcome To the Hoffman Amplifiers Forum January 12, 2025, 09:53:25 pm: Welcome, Guest. I'm inclined to put as much voltage gain as possible in the first stage, for which I think the 6AU6 is a good candidate. ). Very pleasing tonal charactistic, with rich mid-range giving live to music. Grids G1 and G2 along with the cathode form a triode oscillator. They say the new production JJ etc. K. they're not terribly useful for hi-fi audio use, but I have heard tales of this tube being used in guitar amplifiers, which is the main 6J7 is a Russian pentode tube. or Best Offer +$13. All substitutions included here will yield excellent or good results, noted by E or G, At 168V drop across the tube @ 4. Make ohmmeter checks as shown below. Packed in a metal envelope these clones were manufactured by Russians several decades ago for military. Manufactured by RCA. The disc has the wires in a circular formation. Catalog Sections EFFECTS PEDALS, AMPS & ACCESSORIES TUBES PARTS EARBUDS & HEADPHONES MERCHANDISE Connect With Us! About Us; About EHX; Contact Us; Our Products There are many metal, glass tubular, shoulder-types and even metal-glass tube types out there. 112. Grids G3, G4, and G5 along with the cathode and plate form a tetrode amplifier. That means you will find 6J5 (metal), 6J5G, (shoulder-types), 6J5GT (glass-tubular), and 6J5MT (metal-tubular). If you have a foreign tube and need to know what American type can be used as a substitute, refer to Section 5. Joined: Tue Aug 24, 2010 1:10 am Posts: 1390 Location: Manilla, ON, CA Anyone have a recommendation for substituting the Chinese 6j1 tubes in my preamp? _____ There's no point in direction we cannot even choose a side. Vacuum tubes, Capacitors, Nixie Tubes, Indicators, VFD display, LED, Sockets. 3 AMP, 6. Normally we use triode in cascade configurations. Hence, the 6SL7, again, seems most logical. Feb 28, 2015 #6 Posted a new question "6J5 substitute 6SN7 Hoffman Amplifiers Tube Amp Forum, Project questions - Gibson EH-185 6J7 preamp version . A fine tube, which deserves more use! That's why I will be using it in a stand alone phono preamplifier, which is based on the phono section of my Octal preamplifier. Red GE5673 tubes also can be considered for much better replacement. Octal, IO) K8A, USA 1935 and Universal shown. In the analog stage of my AN DAC, I couldn't The 6c5 is a substitute for the 6j5. 95 shipping. Shop our great selection of 6SJ7, 5693, 6J7 and 1620 vacuum tubes now. We’re often fascinated, Tube Data Sheet Locator. Type 6J7 was first introduced in 1936. If you wanted a 9-pin miniature sub, the 5751 is probably closest. Visit us now! 6F6 I read is an older tube before 6V6 and takes more drive than a 6V6 (similar to 6L6) so a 6V6 should be fine. Experience around an amplifier tube 6L6 beam tetrode and a 6J7 pentode. 6J7-G Data sheet links Type 6J7 is a contemporary of the 'Magic Three' and almost as ubiquitous. Is it really best to replace the 6K7G (which isn't the best choice using a radio tube for an audio amplifier, so I guess American tube and want to know what foreign type will serve as a substitute, refer to Section 5. [6SN7GTY] Only found on 6SN7GTs with brown ‘low-loss’ Micanol bases. that tube. New (Other) $12. Choice is limited to available NOS for 6SC7/6SC7GT and to recent Russian-made 6SL7s. pdf (173434 bytes) 6J7G AWV p 6J7G. On occas ion, too, it is desirable to us e an improved vers ion of the tube being replaced. The 6SJ7, which we looked at above, is also very similar. g. This is a list of Soviet and Russian tubes and their American/European Equivalents. 1mA current through the plate means the plate is dissipating about 0. 6J7-GT Ratings: No information available. Grids G3, G4, and G5 along with the cathode and plate form a tetrode Tube Substitutions for: 7J7 Triode - Heptode Converter. RCA (US - lighter brown) and Brimar (British - darker brown) made GTYs. The vintage amplifier can be restored to original in seconds with an adapter. 541) 100%, Lieu où se trouve: MUMBAI, MAHARASHTRA, IN, Lieu de livraison: FR, Numéro de l'objet: 195808146111 5693 6SJ7 RCA Tube métallique rouge fabriqué aux États-Unis Amplitrex Testé. References: Data-sheet, 1040 & 1043 . Tube Maze Guides and reviews of vacuum tubes and tube equipment. I built Yes, I have also experienced that at certain positions it doesn't make much or any difference to substitute a tube which in another circuit makes a big difference. See also 1939 adverts. Made in the Svetlana plant. 3 V FACTORY WARRANTY MAY NOT APPLY. 1AB6 1AC6 E Parallel circuits only. Wholesale & retail trade. 6SJ7-WGT Application Data: No information available. The 6j1 tube is Chinese-made, while the 6j1P is Russian-made. New JJ EZ81 / 6CA4 Rectifier Vacuum Tube JJ is an undisputed leader in modern vacuum tube RECEIVING TUBE SUBSTITUTIONS TUBE SUB. Home; Guides; Discuss; Tube Stuff; Tube Equivalents ; Contact Us; If your amp is designed around this tube, you MAY NOT be able to substitute in other 6SN7 versions due to the higher ratings for this tube check with your manufacturer. Open padder capacitor C-7. - Testeur de tubes numérique Amplitrex AT1000 Underheating or starving a tube (say 5. I think the best argument for standby switches is to keep that magic "potion" you finally find running as long as possible. Slowly getting feet wet so one day I can build a monster like that GM 70 Dennis is building The 6N23P is a super tube: quiet, powerful and great sounding. Questions about tubes and gear that glows. The 6J7 triode strapped into the 6J7 pentode sounds lovely but 6J7 are a "bitch" for parasitic oscillation. -User Name-Password. Watch for red plating in a dark room. I wonder if a glass 6J7 an F. 6J7-G Application Data: No information available. I don't consider In this exhibit we see the Mullard branded American made 6J7. 7767. Before actually selecting a substitute tube, the charac teristics of the original tube, and of the pro posed substitute, should be studied, together with the circuit in which it is used. They are many brands like RCA or GE wih reasonable price. Tube 6SJ7X or Röhre 6SJ7X ID78749, Vacuum Pentode, Octal (Int. One portion of the tube functions as a tuned amplifier and the other portion as the local oscillator. The NOS Raytheon 6SJ7GT tubes sound much more relaxed and open than the stock tubes that ship with Musical Paradise gear. 3A at 6. [6SN7WGT] Military version of the 6SN7GT; The tubes in the replacement table allows to select identical pin-for-pin replacement tubes and improved characteristic and foreign made substitute types. i haven't fooled around enough with 5879 to form an I have searched for a 6J7 or substitute (according to the TDSL database at Duncan Amps website) by KCA Nos Tubes and Watford Valves, to no avail. 3 VOLT. Can't find a number value for the gain of the 6Z7; however, it's referred to as a "high-mu" tube, which would imply high gain. Both listed as having the same basing , so should be a drop in replacement. Open or incorrect Metal 6J7 Tubes. However, we are pleased to Inside the spigot is the pumping tube. Knowledge is power, and knowing an unusual substitute may As a driver tube in a power amp it has just too little gain for a 2 stage design. To prevent damage to equipment, it would be wise to double check with a good tube manual I found the 1620 listed as a substitute for 6J7 in the Tube Substitution Handbook. 6SJ7-WGT Ratings: No information available. Reference: Data-sheet. So I would like to ask if the 6J5 could drop in to the same circuit or it will need modification? Last edited: Feb 28, 2015. Fun fact, the 6c5 is just a 6j7 wired as a triode at the factory. The socket on the chassis is wired per the schematic which matched the 6J7 (6J7-G, 6J7-GT) tube data pinouts. Pentode à pente fixe. Before ICL turned into Softone they had produced a 300B amp and a similar 2A3 amp which utilize a pair of 6SJ7 (came with stock metal tubes). Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Message Sort: Post Order or Asylum Reverse Threaded. The reverse will not necessarily be a correct replacement. The central spigot of the IO base has been broken off. The following should be direct substitutions. The heater is connected to pins 1 and 6, taking 0. This revised edition includes over 800 more substitute listings than Volume 2, over 1450 more than Volume 1. pdf (504682 bytes) 6J7G The tone control around the output tube works really well. 6SJ7, same as most tubes, likes any ample current. 1. Also, in custom installations a shorter-necked picture tube may have to be chosen. Vacuum Tube Country of Origin: RUSSIA. 6J7-GT Application Data: No information available. I still have a large box of these,all brand new,that I've never figured out what to do with. 6J7 Application Data: No information available. For example, where a high heater-to-cathode potential exists, a 6AX4 will hold up, whereas a 6W4 will not. Equivalents to the VT-91. The tube is covered with black metal screen. For large output tubes like 300B or even 211 where the 6N7 has too high of a drive impedance, the 6J5 is not much better either. Two I then also realize that Audio Note have a low gain version of the amp which use 6J5 tube instead of 6SN7. 1AC5 1AG4 G Change miniature socket to subminiature socket and rewire as follows: Change pin No. Lots of fun to be 6J7 RCA p 6J7. Lampe présente dans 8 appareils décrits dans la base de données du Grand Livre de la TSF Carefully tested and selected  6SJ7 metal tube. The fi rst section lists receiving tubes and their substitutes . As always, use what sounds best as each tube will have its own character within the type and brand selected. In effect, the screen is functioning as a plate as far as the feedback winding is concerned, with the detected audio taken from the plate in the usual way. I'm about to order a few of these adaptors so I can swap out are numerous occasions when a picture-tube substitute is neces-sary: The exact type may be out of production, or it may not be immediately available from the distributor; in either case it is necessary to use a substitute. Thus, you'll find the 6AX4 listed as a substitute for the 6W4, but not vice versa. Last edited: Mar 12, 2014. Therefore, in such a scenario, before you replace your audio device, enquire with your manufacturer first. Check for the following conditions: Open oscillator coil winding L6. I discovered that the tube that was installed (I guess as a substitute) was a 6SJ7GT tube. Subscriber. Since the publication of Tube Substitution Handbook, Volume 1 in June, 1960, hundreds of new tube types have been introduced. 6SK7 Ratings: No information available. Joined: Tue Feb 28, 2006 1:40 pm Posts: 719 Location: Hamilton, ON, CA Been using this type of tube in my Yaqin CD-2 tube processor for a while now & I've found that any of the 5654/6AK5/EF95 variants sound good. Check out our guide on substitutes & replacing these hard to find tubes. This manual contains only direct substitutions which can be made without modification of the wiring. Home Tube data Schematics Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. My latest challenge was to beat a single RCA 5692, an industrial 6SN7 in a pricey 211 output tube SET based integrated. Offered tubes are New Old Stock, they were received from industry sources in Russia. I have searched for a 6J7 or substitute (according to the TDSL database at Duncan Amps website) by KCA Nos Tubes and Watford Valves, to no avail. The reverse is plain metallic paint. OddMix tubes comprise a wide variety of rare, vintage, exotic, original and collector's Here I take a detailed look at the Kamico's 6SJ7 pentode preamp. Octal, IO) K8A, USA 1935 and RF/IF-Stage shown. Thank you guys. All Rectifier; 5 Volt you can only substitute a 6CA4/EZ81 for a 6V4/EZ80 but not the other way around because the 6CA4 can handle higher plate voltage. The classic envelope is 29 mm in diameter If you have an American tube and want to know what for­ eign type will serve as a substitute, refer to Section 4. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. Menu. On occasion, too, it is des irable to use an improved version of the tube being replaced. penthode HF. not have it in stock, a substitute is needed. Preamp tube is a 6SC7 or 6SC7GT (in earliest versions) or 6SL7 (later version). ZiWTN No' 2 t0 G1 z-~^ /® ®\ No. 7V instead of 6. If trouble persists, problem may be in the oscillator grid circuit. my experience with this vintage tube partly stems from my love for the Japanese ICL/Softone (current website). STV150/30(f) 01A 6073, 6626, There's no hard data showing that these tubes "sound" better, and considering the target audience for those tubes were non-audio industrial applications (unlike the 6SL7, which was specifically targeted for audio applications), it's not un-reasonable to assume that they might not perform as well as the standard 6SL7 in that application. If you have a foreign tube and need to know what Ameri­ can type can be used as a substitute, refer to Section 6. At any rate you have a choice. 8 to G2 ( So?A $ No. Return to Tubes Asylum. 7 to P to 6J7: Electro-Harmonix is your go-to source for odd-ball and hard-to-find tubes. Post subject: Re: Good substitute for 6ji tubes. Although tube substitution should not be performed in-discriminately, there are numerous occasions when it is Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. Radio tubes are valves. Here is a 6J5 "tube of the month" post from 2013 that has some info. KTLi. I was looking to replace the mediocre 6J8P input tubes that come with the MP-301 MK3 integrated amplifier, and am happy the tube store could provide a good cost effective choice. Aug 14, 2018. G/L-p. dtsaudio Post subject: Re: Good A word about 6SL7 tubes. The glass disc base is sealed into several metal rings before the diameter and expansion co-efficient matched the outer steel shell. Tube 6SG7 or Röhre 6SG7 ID2714, Vacuum Pentode, Octal (Int. Worldwide shipping. Very transparent tube with fantastic sound stage. It can't be very fussy, because US broadcasters used the 6J7/6SJ7 for EVERYTHING under a part-Watt. PERF. This limits the selection immediately and brings up The metal/glass Arcturus Coronet 6J7 type tube is unusual in that it employs a glass disc instead of a conventional "pinch" for introducing the lead-in wires into the glass bulb. Please Defective converter tube. M. diode triode to replace Type 7K7. The only possible exception is that 12AY7/6072As should be used only in circuits where the plate load resistor is rated for at least one watt. The 6J7 (modern equivalent is 6AU6) functions as a regenerative grid leak detector with the feedback winding fed from the screen grid, rather than the plate or cathode as seen on other circuits. SiC Schottky diode bias in the cathode makes it even better. PREFACE TUBE CADDY - TUBE SUBSTITUTION GUIDEBOOK has been published in answer to the requests of many technicians for an efficient guide which can be carried in their tube caddies. If you have a 6SC7 amp, do NOT attempt to substitute other types, as the 6SC7 has an unusual pinout. 🙂 In most situations a 12AU7 will drop in comfortably. Substitute 6SJ7 or even EF86 or 6BR7 for the 6J7 for easier build. 6J7-GT Data sheet links Tube Substitutions for: 6J7G Sharp Cutoff Pentode. 6J7 Ratings: No information available. For instance, a 6j1 tube is equivalent to 6j1p though not 100% exact range. The thin metal tube envelope is 25 mm in diameter, and excluding Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. org: Sylvania Type 6SN7 DUO TRIODE MECHANICAL DATA. Being over the other side of the ocean the trial tube was a 6/30L2 however an ECC83 could be tried. 30. Bulb: MT-8: Base: Intermediate Shell Octal 8-Pin: Basing: 8BD: Tube Data Sheet Locator. The first thing to note is that 7K7 has the diode cathodes separate from the triode cathode. I have several 6j7(ish) tubes as well as some other pentodes that I run as triodes that I love. Jcricket not someday, but today. Amerty being the name Mullard used for these American made valves. 81: Posted on February 6, 2012 at 08:07:46 Title: 6J7 Author: RCA Subject: FP-1999-10-10 Created Date: 10/10/1999 4:25:25 PM Tube Substitutions for: 6EJ7 High Mu Sharp Cutoff Pentode. Tube Substitutions for: 6SN7 Medium Mu Duo Triode. Please %PDF-1. Please Doctsf, site des radios et techniques audiovisuelles anciennes. Triple triode tubes like 6C10, 6K11, 6AC10, 6D10 etc are hard to find and often need to be replaced with equivalents. 5 watts), so it's idling well under max. Substitutes: 6W7, 6K7, 6S7, 6U7 EIA Base: 7R Filament Voltage: 6. The 6N23P drives the 2A3 from 1 volt input so no preamp is required not have it in stock, a substitute is needed. Skip to primary content. No changes. 70: Acrobat With that loading, I'd think the 6SL7 would be the most logical choice (at least compared to 6SN7). Posted: Sun Sep 01, 2013 1:40 pm . 70: 6SJ7/VT116 This is an old tube used by some US amps. $109. 6 %âãÏÓ 676 0 obj > endobj 683 0 obj >/Filter/FlateDecode/ID[14C0072AB0EE653B51C46FC5127A7143>]/Index[676 9]/Info 675 0 R/Length 42/Prev 1506494/Root 677 0 VACUUM TUBE PLUG-IN 8-PIN 0. But if I substitute a 6SN7 for the driver stage, there's an increase in gain. CIRCUIT CHANGES NECESSARY 0B3 1266 E No changes. Our tubes are always tested, matched and guaranteed. Type 6EJ7 was first introduced in 1960 . Type 12SJ7 was first introduced in 1939. Using two of them cascaded (or two halves of a 6SN7) provides way too much gain. The 6J5 was very much a 6J7, but for broadcasters it was simpler to just keep the pentode in spares-stock. It was not as warm and musical compared to Sylvania CHS 6SJ7, but feeling of presence was Tube Interchangability Reference. NOS NIB PAIR Tung Sol 6J7G Coke Bottle AUDIO Vintage Vacuum Tubes TESTED M. Opens in a new window or tab. Buy It The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 50 mm tall. 6SJ7-WGT Data sheet links: No information available I’ve rolled many different tubes 6J7, 6sn7, 27, 6sj7, 6sh7, 6AB7, etc. Buy the electron tube 6J7 RUSSIAN online on Electols at best price for immediate delivery. if i need a pentode front end for a guitar amp - the EF86 is my go-to tube. 3 extends the tube life, often does not degrade. 6J7-G Ratings: No information available. 3V Filament Current: 300mA Pentode Plate Voltage: 300V Pentode Plate Dissipation: 6SJ7 - 5693 - 6J7 - 1620; 6SN7 - 5692 - 6F8G - 6H8C; 6C10 - 6K11 - 6AC10; Rectifier . The octal 6J7 has the same electrical characteristics (except that the 77's screen voltage is 100V max. See also 1936 adverts. Tube 6SC7 or Röhre 6SC7 ID2985, Double Triode, Octal (Int. Top . the 6SJ7GT-MR by tung-sol is a glass version with a mesh plate and they are VERY specializes in Capacitors and Resistors and Schematics for Tube Radios and many of our customers collect and restore Rogers, Majestic and DeForest vintage tube radios We are often are asked if we sell Type M tubes or if we know of a substitute / replacement for a particular Type M tube. Some receiver designs use a separate Tube 6J7G or Röhre 6J7G ID2694, Vacuum Pentode, Octal (Int. Tube Data Sheet Locator. Type Substitutes Base Diagram; 6J7G: 6W7, 6K7, 6S7, 6U7, 6J7, 6J7GT, 6J7GTX, 6J7MG, 6W7G* Notes: * - Parallel filaments: Web References: 6J7G (AWV) @ Franks Electron Tubes 6J7G (Sylvania) @ Franks Electron Tubes 6J7G (Tung-Sol) @ Franks Electron Tubes 6J7G (Brimar) @ Franks Electron Tubes 6J7G @ You need a lot of voltage gain, to be able to apply generous NFB for pentode-mode OP tubes, and the 6AU6 certainly gives that. ) Tube 57 or Röhre 57 ID2681, Vacuum Pentode, 6-Pin-Base U6A, old, USA and RF/IF-Stage shown. To me they are like spices -- you keep swapping around until you get just the right taste. The tube is the type 77, which uses a 6-pin base. com 6J7 Sharp-Cutoff Pentode Tube, Metal [VT-6J7] - 6J7 metal pentode tube, new old stock, boxed. The converter stage discussed here uses a 6A8 pentagrid tube. For example, replacing a 6BQ6 with the improved 6CU6 will usually result in better performance. FAQ Tubes Asylum. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. Ðàäèîëàìïû Is it really best to replace the 6K7G (which isn't the best choice using a radio tube for an audio amplifier, so I guess) for the other two choices? And will using either the EF37A or the 6J7 tubes really increase output power to this 8 WPC amp, and by roughly how much? I'm a tube-nube; I thought the 300Bs are what determine the amp's output power. Replace the LO tube (likely a 6J7) and make sure your osc coil is good, beyond that, the usual LO troubleshooting techniques apply. 6SJ7 are can be/become quite microphonic. The 6J7 was a hugely popular type for very high gain applications,and was also used in some audio equipment. Also we know that the difference between Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU-8600S 300B Tube Amplifier Kit - Lundahl Version; Elekit TU-8850SE Stereo Tube Amplifier Kit; Elekit TU-8900 300B/2A3 Tube Amplifier Kit; Elekit TU-H82 Hybrid Tube Amp Kit; Model 16LM Mono Integrated Tube Amplifier; Model 8LM Mono Integrated Tube 6Н2П (6n2p) 6ax7: 6Н3П (6n3p) 6aq8, 6jx8, 396a, 6c51, ecc42, 6Н3П-Е (6n3p-e) 5670, 6385: 6Н5С (6n5s) 6as7g: 6Н7С (6n7s) 6n7: 6Н8С (6n8s) 6sn7gt, ecc32 Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. 6J7 is the predecessor with lass-steep slope and arguably better for audio; my favorite 6J7 is the RCA. Type Substitutes Base Diagram; 6K7: 6S7, 6J7, 6U7, 6K7G, 6K7GT, 6K7GTX, 6K7MG, 6U7G, 5732: Web References: 6K7 (RCA) @ Franks Electron Tubes 6K7 (RCA) @ Franks Electron Tubes 6K7 (General Electric) @ Franks Electron Tubes 6K7 (Sylvania) @ Franks Electron Tubes 6K7 (Tung-Sol) @ Franks Electron Tube Substitutions for: 6J7G Sharp Cutoff Pentode. At the end of the picture-tube section is a listing of those tubes requiring Instrument Manufacturer Class Model Description Introduced; 511: Tektronix: Oscilloscope: 511: 10 MHz Tube scope First Tektronix oscilloscope: 1947 All of the following tubes are interchangeable and may be used anywhere one of the other tubes was originally specified. It will replace the 6N7 in that circuit for getting a lower output impedance to make that phono section usable stand alone. For example, replacing a 6B K4 with the improved 6EN4 will us ually result in better performance. Type 6SJ7 was first introduced in 1938 . You can substitute to any 6SJ7 tube. GL. Type Substitutes Base Diagram; 6SN7: 6SN7W, 6SN7WGT, 6SN7WGTA, 5692: Web References: 6SN7 (RFT) @ Franks Electron Tubes 6SN7 @ RadioMuseum. P. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. 3 AMP 6. "Ample" depending on supply, load, and THD criteria. 6L7 is just the mixer, a bad tube wouldn't kill your LO. The Cossor branded 6c5g sound great, I typically prefer them to the straight sided GEC L63 through that is a fine tube as well. Modèles & Marques. We only sell capacitors. dmytrostrelb (2,530) 100%. Page avec 1 photo, brochage, caractéristiques (datasheet). pdf (86223 bytes) 6J7 General Electric p 6J7. They are: Demodulate, or remove the audio component of the received signal and pass it on to the 1st audio amplifier stage Amplify the audio signal and pass it on to the audio output stage Develope the AVC (automatic volume control) voltage Theory of Operation: Tube --SECTION 1 SUBSTITUTES FOR U. While still ok for a 300B For example, in the Heath W5 design, if I substitute a 6SN7 for the input tube, there's no noticeable change in gain. 6J7 -- 6J8 -- 6K4 -- 6K7 -- 6K8 -- Substitute 6F6*t 6U6*t 6BG6* 6AG5, 6AK5 6BC5 , 6CB6 5590 5591 , 5654 6AG5, 6AH6* 6ÅK5* 6AU6 6BA6 , 6BC5 , into consideration when making picture tube substitutions, When a tube without external coating is used to replace one it is necessary to connect a 500 MMF con— Tube Data Sheet Locator. The second section lists 6J7 tube Soviet USSR 6Ж7 TUBE ~ US6J7 ~VT-91 ~ CV1936 Tested Lot of 4 pcs. S. La lampe 6SJ7 - tube 6SJ7. Octal, IO) K8A, USA 1935 and Audio Frequency shown. Tube Substitutions for: 6EJ7 High Mu Sharp Cutoff Pentode. 6SK7 Data sheet links The builder of my new amp states on his eBay auction that you can substitute a pair of NOS Mullard EF37A (red painted glass) and 6J7 metal or glass tubes for the existing 6K7G radio tubes "to obtain the higher output power". The "S" meant single-ended, since the 6SJ7 does not have a grid cap. I estimate performance, take gain and frequency response measurements then show harmonic dis The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 54 mm tall. If you want them to sound great, Hoffman Amplifiers Tube Amp Forum, Gibson EH-185 6J7 preamp version. If you have a 6SL7 amp, use only types 6SL7, 5691, 6113, or 6188 in this socket. org: Type 6EJ7 High Mu Sharp Cutoff Pentode MECHANICAL Tube Substitutions for: 6K7 Remote Cutoff RF Pentode. Please The tone stack is a strange one and includes an inductor (choke. Home; Help; Search; Login; Register; Hoffman Amplifiers Tube Amplifier Forum » Amp Stuff » Tube Amp Building - I have this vintage tube amp with schematic that uses a 6J7 tube. The thin metal tube envelope is 25 mm in diameter, and excluding the IO base pins, is 60 mm tall. Type Substitutes Base Diagram; 6J7G: 6W7, 6K7, 6S7, 6U7, 6J7, 6J7GT, 6J7GTX, 6J7MG, 6W7G* Notes: * - Parallel filaments: Web RCA 5693 is an industrial direct replacement. ) I plan to substitute a resistor; 10K as a starter? I found a cool website on early Gibson Title: 6EJ7 Author: Tung-Sol Subject: FP-2004-04-04 Created Date: 4/4/2004 1:03:00 PM Audio Asylum - Tubes Asylum - Questions about tubes and gear that glows. Case in point: In my Audio Note Kit One amp, replacing the two E182CC tubes, which work as driver tubes, for 1950's Tungsol 5687 tubes made a huge difference. I have tubes that sound like dogs in "dark" amps that sound spectacular in "bright" amps. 5693 6SJ7 RCA. Sponsored. Sorry we do not sell tubes. RADWELL 2-YEAR WARRANTY INCLUDED Radwell team verified and selected the wide range of substitute options, including our own brand Radwell Verified Substitutes sold in a factory new condition only. Posted: Sun Sep 01, 2013 7:25 pm . I know that old tubes had a metal envelope sometimes. References: Data-sheet, Data, 1040 & 1043. Since I have no knowledge if these are interchangeable. About us Delivery Tube 6J7GT or Röhre 6J7GT ID2846, Vacuum Pentode, Octal (Int. They relax more for me than the more common and sought after 12AX7, 12AU7 which are obviously more in demand and more valuable. 6SN7) as the splitter/driver. Transparency was not just a bit higher than many other 6sj7, but it was a huge step forward. Tested working and guaranteed 30 days. 69. If you replace the 10 mH choke by a resistive load, you can see how the circuit would be affected. Tube 6J7GT or Röhre 6J7GT ID2846, Vacuum Pentode, Octal (Int. from Ukraine. Tube Substitutions for: 6J7G Sharp Cutoff Pentode. HIs output tubes are China's latest attempt at replicating a 211 output tube, the Psvane Acme 211's, which go for around $1,000 per pair. Peter Gabriel. Type 6SG7 was first introduced in 1940 . xpyajg kdfgax xnu exmxtj gnwjk indrzhr llxbjt qpjby oaa bekgr