Ecl82 amplifier. I got smother highs But sound stage suffered a bit.

Ecl82 amplifier and use a constant current load . Long time lurker, I finally got down to build a spud amp with an ECL82! I used these (Single Tube amplifier) two schematics, with only three changes: A bridge rectifier in the PSU (4 diodes instead of 2 in the chematics) as the toroid transformer doesn't have a common ground. ECL82 Single Tube Amp. Electro-Harmonix ECL82 (6BM8) large image 210. This amplifier did a little better than this having a -3dB bandwidth from about 46Hz to about 30kHz. 7 6. It performs really well at moderate levels, but sounds strained in the top end when driven hard. identical "Hornyphon" magnetophones made in Austria with the idea to build with them a stereo tube amplifier. New try out of a 6BM8 schematic found on an Australian website. for Hungarian Tungsrams or $10. :( Yeah, adding distortion to a design like this seems very This part is the heart of the amplifier, the PCL82 tube which consists of a triode and a pentode, plus two resistors and a capacitor. Assembly Manual 6BM8/ECL82 SE 2. TRI-AMP your speakers. 6A3sUMMER. ECL82/6BM8 are audio valves and you can get Is the output cathode biased, or UL. 3M, whereas the new one shows 330k. Amplifier Hardware; The ECL82 is derived from the PCL82, which was designed for TV purposes. This exhibit is my spare for the TK14 tape recorder that I have had since December 1963. References: Data-sheet & 1040. They sound great in a push pull configuration and you can fit the amp in a pretty small chassis when you eliminate the need for the PI tube. Price 1 off (excluding vat+p&p) ECL82 (6BM8) Russian - £10. One cool thing about the ECL82 is that they were designed for such high voltages, you can really push them. New production power tubes from Electro-Harmonix & other assorted brands! Email Password Confirm Password. The Stereoplex Amplifier - A Valve Power Supply - A 3 Valve 9 Watt Amplifier Extras Brimar G8LSD Valve Collection Other ECL82 exhibits . 2021-01-05 2:02 am #2 2021-01-05 2:02 am #2 The input The famous amplifier just connects the Suppressor Grid to PRR is right. Matt reports: This is quickly becoming my favorite Back to home page Back to audio electronics page. The site also contains very useful information for the beginning builder. Building, troubleshooting and testing of these amplifiers should only be ECL82 vs ECL86 are different tubes no substitutions. In my arsenal of gear is an Eastern Electric Power Amp. Experience the warm sound of this single ended single tube audio amplifier. The level of hum and noise in the prototype amplifier, measured with a short-circuited input, is typically 75dB below 10W. Very dusty. The amplifier is powered from the mains UCL82 - The TV audio amplifier! You might be amused by my use of an ECL82 single ended amp and 4" full range speaker as a 'typical TV audio' setup to illustrate what TV Sound should be like. New but this is where seeing the schematic will help. It's mona Operate the amplifier without the 12AX7 AF Amplifier installed and see if it still oscillates -- which I'm betting it will. This valve was designated ECL82, and given the RMA type number 6BM8. Most receivers and amplifiers were made in Japan & Europe. These are Russian valves, branded Electro Harmonix EH 6BM8. They still test very well. Jump to Latest S. 90. And my favorite tube is ECL82. I just started listening to it again lately, and boy, this little tube amp sounds wonderful. The 6BM8 (ECL82) tube contains both a power pentode and triode is a single glass Integrato autocostruito con finali Ecl82, nel video di prova ho utilizzato un Nad 3020 i come preamplificatore. Joined 2008. 6BM8 Audio Amplifier. Power 2W. Parts arrived on time, now installed and working fine. The Edcor XSE output transformers are rated from 70Hz to 18kHz. Can anybody know a good schematic in these condiction? I'm thiking to use the Pentode to make a buffer New Old Stock 6BM8 ECL82 CV9167 Valves - IN STOCK - FAST SHIPPING - AUSTRALIA WIDE. There are input tubes to amplify voltage, and output tubes that provide current for driving the load. I used the ECL82 for one of my single ended amplifiers and was very pleased with the result. It is 8 watts and uses four 6BM8/ECL82 tubes and one 5AR4/GZ34 rectifier. * Triode Pentode Grid no. I've used it for a SE transformer-coupled amp with partial (plate) feedback and I get good sound for headphones too with a voltage divider off the 16-ohm tap (not ideal, but HPs need very litte power, so the sound is good and loud enough!). Erb Analysis by original leaflets First Source (s) Jun. GoatGuy Apologies for Working w/ Secondary to Secondary power transformer configuration, filament in series. IMG_20210104_214310. ECL82 Philips datasheet 105. 7 9. Prev. I really like this tube. The purpose of this amp is to learn about tube amps and get a small I own one ECL82 amp and one PCL82 amp, both SE, and I think this is a quite amazing little tube. The current production Russian 6DX8 are seriously good, as good as any of the NOS 6DX8 I've tried. -User Name -Password. Valve amp for practice or for performance if miked up. The VS55 was the first ECL82 tube amp from K+H to be introduced in 1961 with a gold/black color front with a red Telewatt logo. There's a lot here to learn from our servic Im building an ECL82 based amplifier and am hoping i can find some output transformers designed for ultra linear operation if possible. I like it. I got parts from an old philips radio with a dead transformer and a 8 ohm speaker element that I had laying around. They contain preamplifier triode and power pentode in one tube. I've not used it for many years so nice to see it work again. The ECL82 is described by Mullard as an audio triode plus output pentode. The ECL82 is an audio triode plus output pentode. Stereo Amplifier 7W Ampl/Mixer Mullard Wireless, London see also Mullard Radio, build 1958, 1 pictures, 2 schematics, 6 tubes, Great Britain , semiconductors. UNIT DIMENSIONS. I have not used ECL84/6DX8 for a guitar amp but have certainly used them in a low power push pull HiFi Amp - It was gorgeous. However, the ECL82 was used almost exclusively as AF pre- and output amp, although the triode section is greatly oversized for this application. The thin glass tube The level of hum and noise in the prototype amplifier, measured with an open-circuited input and the tone controls set for a flat response, is better than 65dB below 3W. Vintage German Klein und Hummel VS-56 ECL82 and ECC808 tube amplifier. Making a ECl82 work in a Baby Huey would require some redesign. ECL82/6BM8 are in current production too. Totaly build with dump materials for about 150 dutch guilders at the time. Joined Nov 4, 2018 Messages 167 Points 28 Location Ind. Our mono & stereo Vacuum Tube Amplifier Kits come with everything needed to build a great sounding amplifier, pre-amp or Tone control unit. Instead of PCL82, without any change in the schematic, ECL82 can be used, in which case the heating voltage should be 6. jpg. Thread starter Einric; Start date 2012-06-03 4:26 pm; Status Not open for further replies. It seems the unit was also designed to be exported to other contries as it provides the possibility to change the lines voltage to 110 Volts. At any rate, this will prove that the issue is not with the first stage, it's location relative to the output connections, etc. T. 399. 90 Electro Harmonix ECL82/6BM8 - £29. The new B+ and heater transformer is ready to install. Max. The attached is a schematic trace of a Cosmos integrated amp which ran PP ECL82/6BM8. Unusually STC, the owners of I built a single ended push pull amp many years ago using el84's and just fancied another go , this one worked out really well apart from hum i need to sort The smaller of the two kits is the Elekit TU-870R which is a small single-ended 6BM8 / ECL82 tube amp rated at about 2W per channel. You will be restricted to triode mode "finals", as the magnetic headroom necessary to employ I second radiotron's suggestion: Class D or gainclone amp for the subwoofer + ECL82 SE for the main channels. Features This is an output transformer coupled tube amplifier and not an OTL. Making of a 211 amplifier, Part 3: Listening; Making of a 211 amplifier, Part 2: Assembly; Music: Lou Donaldson, Alligator Bogaloo; The Octal Preamplifier Mk1; Music: Jimmy Giuffre, Tangents in Jazz; Making of a 211 Amplifier, Part 1: ECL82 valve amplifier. DIY Central. 1 x Stereo Pair RCA to a Pre-Amplifier or Integrated: PCB: Sturdy PCB with 2oz copper trace and thick grounding/ HT traces: Width: 38 cm: Height: 14. We saw similar power tubes in the old 1966 10-watt Marshall combo Purchase Electro-Harmonix 6BM8 / ECL82 vacuum power tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. 4x ECL82) that uses a 12ax7 preamp per channel. 5W Classique Version 1. This is particularly important for SE amps where there's no noise cancelation since there's no PP action. The circuit is typical for K+H integrated amps: too many switches and controls, fixed grid bias, a trim pot to balance the output tubes, CCIR/RIAA switch a. I have run PCL86s of all brands for more than 15 years at 340V plate voltage in triode mode without 1 single failure, including the cheap Polamps (that now someone is selling like it were gold but they can still be found at low price The ECL82 Triode is more like 1/2 a 12AT7 and its pentode section is slightly lower power again. Back to ECL82 main page. Thread starter P100; Start date 2023-04-29 2:43 pm; Jump to Latest P. Welcome To the Hoffman Amplifiers Forum December 30, 2024, 10:11:25 pm: Welcome, Guest. 6 cm: Depth: 40. Two sections: Medium MU triode 70 amplification factor, power pentode good up to 7W plate dissipation. Check this thread out. This amplifier is hand crafted for high end headphones between 32 to 600 ohm impedance. Voltage (AC or DC) 5. The 6CY7 stereo amp uses a 6CA4 tube rectified power supply with excellent channel separation. My ECL82 Bass amp has shrouds on the ECC83 and only one of the ECL82. The trafo outputs the expected 200 volts. 1 to cathode 2. Strange cabinet design. Back to Top Instead of PCL82, without any change in the schematic, ECL82 can be used, in which case the heating voltage should be 6. Tubes / Valves. Schematic from a Mullard publication. And purchase 1 ea. The. 0. Drive it with a guitar pre-amp for nice single-ended tone, maybe 2-3 watts. It can have an amazing nice sound. 5 KB · Views: 308 6. 1 of 2 Go to page. The triode section has a amplification factor of 70, and this valve was much used in record players with crystal pickups. Send BASS to RA–100. 9 V Current 0. The 6BM8/ECL82 SE is a pure Class A Single Ended valve amplifier that uses a two-stage Single Tube audiophile amplifier . this will give you a fine estimate of the DC voltage The Ecl82 Tube Amplifier from AliExpress brings you a preamp vacuum tube board that takes your listening experience to the next level, providing a level of sound quality that's truly hard to match. I sold this amp to Yup, that's where I first read that the "12AU7 is non-linear". a MOSFET source follower for current gain (with a LM317 voltage regulator IC Hi all. The closest thing i can find is in this ebay here, and its a multi impedance transformer, so may not be as good, its also chinese. 2023-04-29 2:43 pm #1 2023-04-29 Ive been asked many times to see the inside of my amp, so at last here it is. It is the best sounding push pull amp I've ever made. There are 2x different clips of the amp on the "playlist" @ that link In most ways, the Shindo Cortese power amplifier ($13,500 with F2a output tubes) is as far from an audio Corvette as one can get. 3 A heaters and an anode loss 7W max. A basic stereo tube amplifier only needs two ECL82 tubes. The JBAA tube amplifiers can use a 12AX7, 12AU7, ECC82, ECC83, 5751, 12SL7, 6SL7 in the driver position and 6V6, 6AQ5, Hoffman Amplifiers Tube Amp Forum, 1-Tube reverb 6BM8/ECL82. 182-189, Morgan Jones tested a bunch of medium mu triodes in a mu-follower configuration with a triode-wired D3a as the plate load, Vg of about -3. 1; 2; 3; Next. 'n' say. Anyway, as the preamp voltage is lowered too, the overall sound is compressed in a vintage way, but more would not be so good i think. ECL82 Amps Menu: ECL82 Single-Ended 1; ECL82 Single-Ended 2; ECL82 Push-Pull 1 Hello, I've finished making Chiomenti's "Lo scherzo" whit ECL82 tubes and I must say that it plays OK, even though I don't have very efficient speakers. The far field listening is for the TV and DVD/TV in the living room, using a solid state amplifier (Horrors!). High quality stereo at maximum economy was the goal, and anyone who has been reluctant to shell out the money for This is a single valve dual stage amplifier (manufactured 25th November 1961) using a triode pentode ECL82 valve. PCL82/ECL82 Tubes: Any tube amplifier requires two (or more) types of tubes for each channel. However, it's not bad. 01 model GXPP15-6-8K will give satisfactory results into both 4 and 8 Ω speakers. Ciao, ••• The ECC83 input tube allows to use the triode section of the ECL82 as good working driver. HiFi Tube Amp Kits; Elekit TU-8150 Stereo Tube Amplifier Kit; Elekit TU-8185 Stereo Tube Amplifier Kit; Elekit TU-8200 Optional DAC Module PS-3249; This small 2 Watt amplifier is capable of playing real loud and the many different types of the triode/pentode xCL82 tubes like PCL82, ECL82 etc. 6BM8/ECL82 SE is a pure Class A Single Ended valve amplifier BM ECL SE Classique Assembly Manual Good for low power amps or headphone amps. Glass_painter. This guide enables readers to build and assemble the 6BM8/ECL82 SE Classique DIY amp kit. With 1. Home; Help; Search; Login; Register; Hoffman Amplifiers Tube Amplifier Forum Hello Guys, I recently bought 2 pcs. Hello this is the second version of my amplifier's movie It's based on ECL82 tube thriode-penthode Amplifiers like that are made for your special wish. Big Picture. Have a nice Day! The 6BM8 is not a common tube for audio amplifiers and especially so in the USA. Edcor's $37. However, I noticed that in one channel, precisely that relating to the O. At $14. For this no need registration. Another good quality tube, again being used for small Guitar and HiFi Amps. As I need to use a separate heater transformer, I can have the option of using PCL/UCL82 and PCL86 which could be a potential saving as these old tv valves seem plentiful in NOS form. I also have seen such a schematic from radio museum. org, Only change being that the plate to plate feedback resistor was 3. 2 EL84: Pretty rare single ended EL84 stereo amp with EZ81 tube rectifier. 95/ea. ECL82 Single-Ended 1. The Stereoplex Amplifier - A Valve Power Supply - A 3 Valve 9 Watt Amplifier - Three-valve Stereophonic Amplifier Extras Mullard Valves Donated by Bob Hayter (G4OAC) Other ECL82 exhibits . However, the ECL82 was used almost exclusively as AF pre- and This is my first attempt to design my own amp. 6 watt output, don't expect to rock the house, but despite its small power, this little guy can make noise. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. Hello, My first post here, I just recently purchased a 3 channel Motorola tube amp it has 4 12 ax7 ,1 el84,1 ez81 and 2 ecl82. 6 cm: Weight: 10kg: Push-pull amp using 6BM8/ECL82 tubes 12-17-2012, 06:41 PM. It uses a single ECL82 valve, which is a triode-pentode in one glass envelope. still a great triode/pentode combo fwiw. The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins it is 47 mm tall. ECL84/6DX8 are in current production and are good quality, being used for small HiFi and Guitar amps. I wish The amplifier make use of a push-pull of ECL82 (pentode section) while the triode section are being used as inverter/driver in a “long tail” configuration. Assembly of 10 Watt Amplifier Layout diagram of 10W amplifier Because of the high voltage gain of the ECL86, great care has to ECL82 runs in triode mode with 10mA. 203HF ECL82 PUSH-PULL” is in sale since Sunday, January 5, 2020. 2011-03-04 12:20 am #4 2011-03-04 12:20 am #4 Thanks fellas, TubeDepot carries a selection of 6BM8 / ECL82 Power Vacuum Tubes. These amplifiers were not marketed in Australia and only came Home. svg; Start date May 26, 2024; kvijay. 2011-04-04 9:09 pm #11 2011-04-04 9:09 pm #11 stalker said: Why The ECL82 6BM8 EH, commonly appeared in early hi-fi and guitar amps. measure . AUDIO TUBES | GERMAN TUBE HIFI Finally the bigger OPTs are another feature which make this amp one of the best sounding Telewatt tube amps. May 26, 2024 #1 Hello Friends, I have listened some branded integrated amplifiers and power amplifiers for the past few years. Attachments. Circuit of the basic amplifier. Building, Home. and at the same time get rid of the bass channel and just use the two existing channel. The TC18 Pre-amplifier employs the ECC83 Dual Triode and the LF18 Amplifier section uses twin ECL82 Triode Pentode valves in push pull. I'm The power amplifier consist of two ECL82 in PP configuration. Pictures, schematic and characteristics. A joyous little amplifier which paired with AN-K or even AX loudspeakers and you have a superb Audio Note quality sounding hi-fi system ready for a source of your choosing. I believe 5K is the correct primary impedance for single ended configuration. 6BM8 / ECL82; 12DW7 / 7247; 12BH7; 6SN7; 6SL7; 7199; 5AR4 / GZ34 / GZ37; 5Y3 / 5Z3; 5U4; 2A3 / 6A3 / 300B; 211 / 242 / 845; American 5 Tube Set; Parts & Accessories. This simple stereo vacuum tube amplifier is using ECL (parallel) or PCL (serial) tubes. This has been my reference for years. Hey guys! I'm building this amp (schematic attached) mixing elements of various somewhat similar amps like a Fender 6G2, a Fender 5F10, a Gibson GA-8T, using a 12AX7 for preamp and 2 x RCA 6BM8 for a cathodyne PI, tremolo and a push-pull power amp. Some of the 6BM8 gear includes the Sansui 250, Knight KG 250, Amperex model 28, Sargent Raymont SR1040 and a few Pioneers beyond the SX34. Developed by Mullard in the late 1940s, the ECL82 was extremely popular with small equipment manufacturers in the late 1950s and early 1960s, especially those making I'm building this amp mixing elements of various somewhat similar amps like a Fender 6G2, a Fender 5F10, a Gibson GA-8T, using a 12AX7 for preamp and 2 x RCA 6BM8 Common type Europe tube/semicond. This guide enables readers to build and assemble the 6BM8/ECL82 SE Classique MkII DIY amp kit. My absolutely recommended version is the original (first) VS56 (without There is positive current feedback via the tap on the output tube cathode resistance back to the driver cathode. Jump to Latest R. Next Last. A schematic and the design details of this amplifier are available in the book “Circuits for Audio Amplifiers” by Mullard Limited 1959 and in the Here we take a look at the British Dynatron Mazurka Stereo Record Player Amplifier circuit, circa 1960. In his book "Valve Amplifiers" Third Edition, chapter 3, pp. This amplifier is performing very good, great frequency response from the lowest lows tot he h This amplifier is hand crafted for high end headphones between 32 to 600 ohm impedance. on the right (see diagram), it I'am thinking of redesigning my 6080 amp to do away with the ECL82. 0482 176 767; neil@thevalvestore. 3 volts. First Prev 2 of 3 Go to page. I think I'am getting overload of the ECL82 triode before I achieve full output. They're like $50 ea. Also has a PWR soak, 4 position, to enable L8 night practice and not become NMEs with your neighbours. 1; 2; Next. Build an active 3 way parametric crossover to sit in 'front' of the 4 cards and the L+R channels of the RA–100. ECL82 Push-Pull 1. HS-1 Control Unit : Control and power amp section In a proper audio amp it can run just like the ECL82 at 300V. I have chosen an ht+ of 250 VDC. (I've used over a dozen of them, they're bomb-proof). Yet another ECL82 se. 3 6. The seller is “zz-sound” and is located in Roma. ECL82 Single-Ended 2. 94 Tungsram ECL82 (6BM8) - £41. The ECL82 was much used in record players with crystal pickups of the late 1950s and early 1960s. of the Alesis RA–100 or RA–150 amp on the used market. The circuit consists of two stages: 1. ECL82 Differential Push Pull Head Phone Amplifier ECL82 Differential Push Pull Head Phone Amplifier Schematic diagram of ECL82 PP Head Phone Amplifier This is Head Phone Amplifier using differential push pull amplifier. 2012-06-04 1:19 pm #21 The 6F3P tube triode-pentode. 5V from two red LEDs in series, and the plate load adjusted for 8mA plate current. Pick the correct point & the output impedance of the amp is lowered. 64 KB. At a regular level, this amp is quite clean and detailed. HELP 1-877 The point is, with near field listening, I most often listen to those amplifiers at 1 Watt or less. 78 A Cathode: Oxide-coated, unipotential Cathode-to-heater potential, max. svg Active Member. 5 W with a coefficient of non-linear distortion of 0. solid state bridge your chosen cap size . Submit. Thread starter kvijay. Home; Help; Search; Login; Register; Hoffman Amplifiers Tube Amplifier REVISED AND PERFECTLY WORKING. Not an issue with a single ECL82, but in the SP6 (especially if you mod it to use a 6L6) 50 volts is the max reasonable voltage. BUY NOW. Yet another ECL82 se . Quite short compared to the ECL82 and ECL86. 2018 readers to build and assemble the 6BM8/ECL82 SE Classique DIY amp kit. Matt reports: This is quickly becoming my favorite The ECL82 pentode triode-connected is perhaps not as linear as a 45 or whatever one might compare against. I plan on using it as a stand alone amp. We always liked this tube, not just for the memories and nostalgia, but also because it produces a good stereophonic sound. Amp: AUDIOPAX Model 88; Bel Canto eVo 4 GenII; Eastern Electric MiniMax amplifier is the 6BM8/ECL82 output tube which, on first glance, might be mistaken for an EL84/6BQ5. The frequency range of the amplifier is from 30 Hz to 20-23 kHz. load it whit one channel first then step the load up. The Stereoplex Amplifier - A Valve Power Supply - A 3 Valve 9 Watt Amplifier - Three-valve Stereophonic Amplifier The ECL82 is described by Brimar as an audio triode plus beam tetrode. Hoffman Amplifiers Tube Amp Forum, Someone has a 6BM8 (ECL82) SE Amp (turret or Eyelet Board) Layout to share ? Welcome To the Hoffman Amplifiers Forum January 14, 2025, 08:00:48 pm: Welcome, Guest. The preamp is based on the jcm800, with 2x 12AX7, Handmade mahogany cab, with a single greenbac Back to ECL82 main page. Do not expect more than 2 watts of output power. So long as your 16 VAC supply can handle 600 ma (0. Of course, Europeans will be most familiar with the 16A8/PCL82, since it is I had a chance to listen to many tube amps PP and SE ranging all the way from 60fx5 pentodes through ECL82, 6BQ5, 6L6 etc. I have done that and can assure you it is a complete pita. For an ECL82 amp no issues. I've build many El84 pp, EL34 pp, 6V6 pp and two differenst kind of tube/mosfet hybride amps, but the damn ECL82 amp still beats them all. 6AW8A—a tube whose prevalence in post-2010 Shindo amps and preamps was striking—in favor Vintage German Klein und Hummel VS-60 ECL82 and ECC808 tube amplifier. General Characteristics Electrical Heater: Min. woodturner-fran. Subscribe to Hifi Collective. Member. The design use was for television frame oscillator and output stage as well as audio. Type ECL83 was first introduced in 1957. renjiish. The triode in the ECL82 is used as a Here is the schematic for a 6BM8 SE amp based on the Mullard ECL82 idea. selenium Mullard 3-3 is a quite popular 3W electron tube amplifier introduced by Mullard Ltd in 1955. Just as the ac/dc tube PCL82, the output section of ECL82 has been designed for an anode and screen voltage of 170V. So the amp works (and sounds) much better than other ECL82 single ended amps (as the Telefunken S80 / S81). 3 pF Plate to cathode 4 8 pF Bruce Heran outlines the design and construction of a High Fidelity Tube Junk Box Audio Amplifier (JBAA). The pentode part is a vertical sweep output amplifier, a low-frequency The Ultimate Tube Amp uses a welldesigned circuit, with two ECL82 type tubes – which are both power tubes and preamp tubes in one glass container – and one 12AX7 type. Availability considerations force you to use the 6BM8/ECL82, as Russian production is in the market place. In fact it scales: use as many channels as you like. -User Name-Password. com. A PSU using an unsymmetrical 1/2 wave rectifier is a BAD idea, as "standing" DC is present on the rectifier winding. The output power of the amplifier is 2. A lot of those systems were powered by 6BM8/ECL82 tubes - a tube that has both a pre-amp and power tube section in one envelope. I rolled in a vintage Mullard GZ34 (Blackburn) rectifier, but I know little about the 6BM8/ECL82 varieties. If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site. Dual: CV 11 : small 3w tube amplifier ( part 1 ) power transformer : anode 150-170v , heather ecl 6,3V pcl 16v output transformer 5,2k / 4-8 ohmin video 2 big capacitor The circuit itself is a straightforward single-ended design using an ECL82 triode-pentode on each stereo channel, ECL82, pentode, triode, tube amp, valve amp. Not ax7 like, closer to an AU7 iirc. See also 1957 adverts. Among the first amps to use EL34 valves were the Marantz 2 (1955), Dynaco Mark II (1956), and the rare Pye Mozart, a single-ended 9-watt British unit from 1956. W. Also a look at my Hoffman Amplifiers Tube Amp Forum, 4x6BM8/ECL82 Little Wing Amp . 225 mA. 7 kg. Heaters to pins 4 and 5. Around 1978 I came into possession of a Rogers HG88 stereo valve (tube) amplifier. 1 nov. The ECL82 has a pentode but it is slightly lower-powered than an EL84, and the triode is more like a 5751 AFAICT. The very high quality Audio Note M2 Power supply section is 6X5 rectified and ECL82 regulated and provides the 12V filaments and HT for the M3 Phono Stage. Old russian Svet WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. ECL82 Amps Menu: ECL82 Single-Ended 1; ECL82 Single-Ended 2; ECL82 Push-Pull 1 The Stereoplex Amplifier - A Valve Power Supply - A 3 Valve 9 Watt Amplifier - Three-valve Stereophonic Amplifier Extras Pinnacle The Hampshire Collection Other ECL82 exhibits . AT work I have a continue battle with people over how TV sound ,and radio too, is being reduced to very poor quality by digital compression systems. 1956 : Funkschau # 11 which was designed for TV purposes. I used PCL82 tubes with 16V 0. PDF datasheet. Sign in . au; Search. For examples of ECL82 amps: CLAUDIO BONAVOLTA Disregard the one using the rectified mains supply; this is NOT recommended practice. 5-1%. 96mm (h) The ECL82/6BM8 is a great tube. Search. The author of this scheme is Anatoly Manakov. Also commonly used in 'Spud' amps. 5 W board with original Philips tube PCL82 (ECL82) included, made in USA Output power 4W max Input 100 mV DC voltage 250V or AC voltage 200 V/ 45 mA High voltage DC supply already built-in Heather (PCL82) 15V DC / Back to home page Back to audio electronics page. Nom. ex. "Shroud" is a sprung metal sleeve around the valve. The double triode is shared between the two channels, one section of the valve being used in each channel for voltage amplification. We added a UL tap with the Edcor output transformer, and modified the feedback with a cap. Amplifiers. o. Why bother with tube amps at all if the source is not a a turntable? ECC82's can sound good in a mu follower topology, I can post a schematic if you're interested. This means that the amp is compatible with dynamics and planars alike, and the impedance matching is done via 40 ohm, 150 ohm, 300 ohm, 600 ohm taps. I want to use only the last stage of the amplifier build with the tube ECL82 and the magic eye EM84, but it seems that the schematic is quite complex Once rebuilt, this amp is a great sounding amp. choose a 204 Rms winding whit the measured indepedance. Still negative feedback is advised to keep the total gain to a reasonable level. The tubes are independent. Welcome To the Hoffman Amplifiers Forum January 05, 2025, 08:38:56 pm: Welcome, Guest. Power 7W. P100. 95 for Russian Svetlanas, this is a very affordable little 9-pin output pentode. -User Name-Password The pentode section of the 6BM8/ECL82 is lower-power, but basically similar to EL84. UNIT WEIGHT. However, the UCL82 was almost exclusively used as AF pre- and output amp, although the triode section is greatly oversized for this application. Derek Walton PCL86 (*NOTE: different heater, same tube) Hi Boys, I'm seeing to make a ECL82 Headphone amplifier, using the pentode of ECL82 in a Cathode Fallower mode to buffer the courrent, and the triode making the amplification of the signal. You can save the remaining tubes for future projects. The input stage is made up of a double triode ECC88 in a totem pole configuration with a low plate voltage ECL82 Author: Philips Subject: FP-2005-05-06 Created Date: 5/7/2005 2:19:04 AM Introduction Congratulations and thank you for purchasing on this kit. The heart of the Ecl82 amplifier is the ECC82 tube, a legendary component known for its rich, full-bodied sound quality and unmatched character. A recent customer comment: That went smoothly. Great sounding tube used as a low-cost driver/power tube, Seen them in Sansui amps from the 60's. 6 amp), you're in business. EMM801---Rare preamp to be operated with LS8 or LS15 power amp. This exhibit is an import that carries the name of the re-seller in the UK and ignores the original manufacturer's name The triode section has a amplification factor of 70, and this valve was much used in record players with crystal pickups. Rectifier valve EZ81. a common cathode tube volt amp stage (gain), 2. The total gain of an amplifier with an ECL82/PCL82 or ECL85/PCL85 will be less than that so the quality of the output transformer will be less critical. Can you explain more please? i am new to tubes. Search for: Never miss a hack ECL82 (6BM8) is a different beast to an ECL86 (6GW8). 2 ECL82: very rare amp : ST6: 3 ECC83. VVS: 3 ECC83. 8 KB. The triode part is a vertical sweep master generator, a low-frequency preamplifier. We use this integrated-amplifier-in-a-tube to power the F-168. The Stereoplex Amplifier - A Valve Power Supply - A 3 Valve 9 Watt Amplifier - Three-valve Stereophonic Amplifier The ECL82 is described by Mullard as an audio triode plus output pentode. 🙂 This particular circuit was assembled and demonstrated as an example of a simple and good ecl82 amp. 100 V Direct interelectrode capacitances, max. But it means you can only see the tops of the bottle. Incredibile suono e capacità di pilotaggio ( The EL34 (6CA7) valve was originally introduced back in 1949 by Philips the parent company of Mullard. Current supply for heaters is n × 300 ma. The ECL82 is derived from the PCL82, which was designed for TV purposes. I have collected a set of output transformers and a mains transformer suitable to build a push pull power amp using either ECL82 or ECL86 types. s. A Triad N-77U in the B+ supply is good for approx. Absolutely GREAT !!! ST12: 2 ECC83 + 2 EF80 + 2 EC92: 4 EL84: EZ81 tube rectifier. And finally, the output part, which consists of an audio transformer The amplifier is located on this top panel on which the tube and the audio transformer are mounted, and the rest of the parts Back to ECL82 main page. Valve amplifiers produce greater amounts of total harmonic distortion, but this type of distortion (2nd harmonic) Instead of PCL82, without any change in the schematic, ECL82 can be used, in which case the heating voltage should be The amplifier to be described here was designed and built as a practical application of stereo simplex principles. I might either keep the pentode section as the interstage transformer driver and put a 5687 infront. Designed to work in TV-scanners and in low-frequency amplifiers. But there will be more distortion. I have a UL 6BM8 PP stereo amp (ie. Please note that the 6BM8 is better known as the ECL82 here in Britain, but it’s actually the same valve. Please login or register. PHILIPS S-202 S202 ECL82 AMPLIFIER 202 ECL 82; If you have any question about repairing write your question to the Message board. I got smother highs But sound stage suffered a bit. Subwoofer amps need only to work with narrow bandwidth The ECL82 is practically an amplifier in a tube: it was designed for low-cost electronics like record players that needed to be as simple as possible. Cart 0 Product Products (empty) I recently inherited an older style Valve amplifier which was not working the team serviced the amplifier, replaced the non serviceable valves and ordered very rare ECL82 compact amplifier. type ECL82, and one full-wave rectifier, type EZ81. . The E/PCL86 has a guinuine ECC83 triode section. The 6BM8/ECL82 SE is a pure Class A Single Ended valve amplifier that uses a two- stage amplification single valve per channel topology. Assembly of 3 Watt Amplifier Since the wiring of the 3W amplifier is With a simple amp like this it should be possible to reverse-engineer one. The ECL86 was preceded by the ECL82. makes for good small amplifiers or for headphone amplifiers. Joined 2002. Some Guitar Amp Guys are using them for small power amps because they could no longer rely on getting ECL86. Ciao, Tim . Vacuum tubes like PCL82, PCL84, PCL85, PCL86, ECL82, ECL84 or ECL86 can be used. Now i´m in the process of rewinding the transformer and designing the amp. A few watts less than the 8, 6, 4, or 2 watts that those vacuum tube amplifiers can put out is not a problem for me. It has an earth connection to ground. WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. Go ahead and try it (my preferance is PP) with a good iron I think you will like it. I would beef up the current a bit, but actually in one amplifier I also went up from 47k to 220k, to improve the amplification. The item “KLANGFILM ERA VINTAGE CINEMA TUBE AMPLIFIERS GELOSO G. ECL82; LCL82; PCL82; XCL82: First year: 1956 Tube leaflet collection E. 6B4G) and OPT´s, my little PCL 82 amp with TV output transformers still makes it into my system now and then without being ashamed. can be use for your high effience speaker like a over 90 dB/w/m. PP ECL82 amp with cascode inverter. Forums. ECL82 has been fitted into small record players and tape recorders also because good reference designs published by tube manufacturers such as Mullard were available for free to the manufacturers of cheap consumer products. Better than Amazon. Amplifier & Power Supply. The amplifier section works with two ECL82 tubes in single ended mode. I have tested many amplifier variants, both in sim and reality. I would like to buy this amplifier pcb Tube audio amplifier super compact Mini 3. Helmuth. Really tiny transformer but being push pull it delivers really well for its size. Even though I have a few amps with way fancier tubes (f. Building, troubleshooting and testing of these amplifiers should only be performed by someone who is thoroughly familiar with the safety precautions around high voltages. It is unclear why the change from ECL86 to ECL82, although they are similar tubes with the ECL82 having Due to the ease of setup and high repeatability, this amplifier can be recommended to beginner radio amateurs. Schematic by Rainer zur Linde from his book "Build your own Audio Valve Amplifiers". Go. I have a fairly large collection of them. Circuit: 12AU7 (ECC82) / IRF510 Headphone Amp. As in many vintage single ended amps hum is a problem in most samples. 4 x ECL82. Thread starter selenium; Start date 2016-01-05 9:38 pm; Status Not open for further replies. Joined 2017. This part is the heart of the amplifier, the PCL82 tube which consists of a triode and a pentode, plus two resistors and a capacitor. to ground to produce a cutoff at a couple hundred KHz. So if direct replacement for any 6BM8 or ECL82. The ECL82 is described by Brimar as an audio triode plus beam tetrode. To me the ECL82 (and of course the PCL82) triode section is like a ECC35. Joined 2016. Demonstration PP ECL82 amp with cascode inverter. it can be used for wondefull sounding amps, power limitation is its only down side. the DC resistance of the transformer (disconnected from mains and from rectifier/cap use the duncan amp PSU designer . The 6BM8/ECL82 SE is a pure Class A Single Ended valve amplifier that uses a two-stage amplification - single valve per channel topology. ECL82 Push-Pull 2. At present, I am using it with the original Telefunken ECL82 the amp came with. Joined 2006. Power 2W for 280mV at input. This amplifier is using the Hammond 125B as an output transformer. mbnf tlztamc ihzom cqkx pqisg yeed dso yka hsmvxw atdn