The 12AU7EHG lamp of Electro-Harmonix is a double triode tube with gold-plated connectors. the electrons from being attracted to the grid instead of the anode. Triode–1 of each tube was then evaluated for LO GAIN and HI GAIN in a preamp circuit that emulates a conservative mic preamp and a more aggressive guitar preamp, respectively. This mod can be done in most any Fender or Marshall type amp, or any amp which utilizes a pentode-style output tube, such as a 6L6, EL34, 6V6, 6550, KT66, KT88, etc. If you are looking for real triode sound, the 45 tube is very interesting. Title: 45 Author: RCA Subject: FP-1999-10-10 Created Date: 10/10/1999 4:05:10 PM. Preamp is a CAT mk3 & Atmasphere mp1 mk3. More Super-Triode Amplifiers What is a super-triode amplifier? A super-triode amplifier is a hybrid design that gives the driving wheel to a triode, so the tube can control the current current conduction of a higher-current device, such as a power MOSFET or transistor or power pentode or, even, an IC power amplifier. Original boxes. 05 CCS 121 0. Cayin MT-45 MK2 KT88*4 tube amp integrated hi-fi Audio UL/Triode - Cayin MT-45 MK2 tube amp KT88*4 hi-fi Audio integrated amplifier Ultra-Linear & Triode for choice, come with tube cage cover Brand New Features: Pure vacuum tube integrated amplifier Handmade soldering, no PCB. I'm looking to sell another of my DIY amps to make way for future projects. Get "Set" Go is a cute play on words for SET (Single Ended Triode). The differences in the "ST" & "Antique Globe" style tubes are strictly cosmetic. And the Korneff amp is one of the very best. EMAIL FOR INFO $689. This is a HUGE 45 tube if used in triode mode. I love Triode for acoustical jazz and chamber music. Welcome at Emission Labs ® Last Update: Data Sheets. The Bugera ECC83A Preamp Tubes delivers similar characteristics to 12AX7 tubes, and provide the tone and grit found in old European-made guitar amps. Low parts count design using excellent Western Electric 417a/5842 high transconductance driver tube, point to point wired using Kimber copper/WBT silver solder and audio grade parts (F&T/Elna electrolytics, tube era Allen Bradley/mills resistors, Paper/oil coupling capacitors) and wonderful sounding OS. It's gratifying to see the excellent agreement with data in all three modes. Choice is mandatory, useually taken "as available" from some manufacturer. It consists of a heptode mixer and a triode oscillator, having a common cathode. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. What I liked most about the TU-879S tube amplifier was the seemingly endless amount of tube combinations that were possible. The output tubes that Anthony sent are NOS NU's (National Union Electronics). It could produce up to 2 watts of undistorted output. 6550A Pentode mode plate curves. saegerradio. From Oliver's ad: "Selling a nicely made and great sounding single ended 45 Triode amplifier. Idea for Christmas New Year Birthday Present Gift. What voltage do you have on tube filament pins while in the tester. Darling - 1626 Single Ended Triode 3/4 watt per channel 12SL7 Driver - 1626 Outputs - SS Rectifier Finished 04/30/2019(sold). 00 +vat +p&p. 5 volt D cell. Typical triode vacuum tube / valve circuit. Construction refers to both basing size and the envelope. introducing 2019 300B SE dual mono tube amplifier model B-1, 8 watts 1% THD FLUXION audio - Duration: 2:07. A few words about the company Triode Corporation Ltd. bekannt) und liefert 1,6 bis maximal 2 Watt. 0: 2A6, 2A3: 81: Audio amplifier. 13EM7 has a 12. The injector grid of the heptode is internally connected to the triode grid. Even so, you will not notice the difference. Junichi san has been building and selling his designs in Japan for ten years, but has recently inked a deal with. This is our collection of DIY and Hi-Fi Audio Schematics. *You may need to lightly sand the back of the potentiometers to be able to solder the bus wire correctly. 05A Filament, gm=1. Die Triode ´45 ist eine sehr verbreitete, bekannte direkt geheizte Triode und ihre Vorstellung damit obligatorisch. The most popular SET amplifiers use three types of triode tubes: the 45, which produces around two watts per channel; the 2A3, which produces around five watts; and the 300b, which produces around. Last update of this mirror site: 2020-05-04 Electron tube Type: Brand: System: Data sheet. This amp is a must have for speakers with over 100 db - this will turns your forward sounding / thin sounding speakers back into normal HIFI music. Triode specializes in the manufacture of high-end tube electronics including CD players, digital/analog converters, pre- amplifiers, amplifiers, and integrated amplifiers. This auction is offering a pair of Raytheon ST shape #45 Power-Amplifier Triode radio vacuum tubes. ) The suppressor grid is internally tied to the cathode, except in the case of the E80L where it must be connected externally (pins 9 & 3). Full Triode mode and 45 watts. Construction refers to both basing size and the envelope. 5 KW to 300 KW high frequency welding machine 3. These tubes tested with very good emission on my Eico model 666 Dynamic Conductance tester with no shorts or leaks. bekannt) und liefert 1,6 bis maximal 2 Watt. This amp features one output tube per channel, and both are driven by a 6N1P/6922 dual-triode input tube. The Triode 25 can operate in two modes: triode and pentode. 45 - $2 / Piece Min. Bill, a minor point, but it is not true that a SET "by definition uses one output tube per channel". Cayin MT-45 MK2 tube amp KT88*4 hi-fi Audio integrated amplifier Ultra-Linear & Triode for choice, come with tube cage cover Brand New Features: Pure vacuum tube integrated amplifier Handmade soldering, no PCB. The difference seemed subtle but positive, so I left it in. Rated output: 45W +45 W (8Ω) Frequency response: -1,-4dB (10Hz ~ 100kHz) SN ratio: 90dB Input sensitivity / impedance: 400mV/100kΩ (Front 1 system, rear 3 system) RCA4 system input: Input terminal 1 line out tape recording and 8Ω output and 6Ω: output terminal Output tube: 4 EL34 ×, 1 the first-stage 12AX7 ×, driver stage 12AU7A × 2 this Dimensions: 330W × 150H × 280Dmm. On the meter scale of 0 - 140, with the questionable meter margin being 60- 80, one of the tubes tested at 80 and the other at 100. Developed from Lee De Forest's 1906 Audion, a partial vacuum tube that added a grid electrode to the thermionic diode (Fleming valve), the triode was the first practical electronic amplifier and. matching pair of vintage presto mono tube amplifiers. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. 5V filament) (Type 27 ST-14 have a long life and should last 10 years or more under. hp = Heptode Unit. The Zen Triode measures 15 x 25 x 16 cm, and weighs about 4. Fire-bottle 45 Set Inspire By Dennis Had Stereo Tube Amplifier Triode Single (45. Last update of this mirror site: 2020-05-04 Electron tube Type: Brand: System: Data sheet. Cees Pel, a fellow tube-enthusiastic, advised me in also using super E-cap at the filament power supply. The 45's operate on a constant current source IC so they could only be matched by grid voltage. 13 June 2015. Often confused with Class A. 51 because they were sold as "in fair shape, one is between good and bad". By comparison, the distortion from the 45 triode was unmeasurable, since overlaying the 5687/7044/7119 profile with the 5687. The variable capacitor and inductor shown in the photograph are moderately big components, at least by UK ham standards, but are dwarfed by the huge tube. It uses 4* EL34 vacuum tubes to be the Class AB1 push-pull power amplifier It provides triode and ultra- linear selection function. Since TubeDepot is in Memphis, TN, the home and main hub for FedEx and USPS, we get very good rates, so rest assured your heavy item will be shipped at the most affordable rates. The Triode 25 can operate in two modes: triode and pentode. Marx 908 Caulks Hill Road St. 1PC Bakelite 4Pin Vacuum Tube Socket Valve Base For 811 300B 5Z3 45 Gold Plated. This is a HUGE 45 tube if used in triode mode. 5,678 results for triode tubes 2 NOS tubes triode EB III = AD1 TELEFUNKEN (910021) C $3,519. The Teflon tube sockets with chromium/copper input terminals and the pure copper speaker terminals are all proprietary and original Yamamoto issue of the very highest. GI21B(GI-21B) BASIC DATA Electrical Parameters Heater voltaqe: V 12. This amp features one output tube per channel, and both are driven by a 6N1P/6922 dual-triode input tube. 0 : Ronnie McCain A: This Time I'm Gone B: Too Much Of A Good Thing: Triode USA: 116: 7" 2 : Eddie Big. The 45 is one of those tubes that is highly regarded by Single Ended Audiophiles. Charles, MO 63304 Phone 636-939-9190 24 Hour Fax 636-922-0601. The 45-triode sound signature is even more pronounce, liquid, and silky. TRiode Base: 4-PIN CERAMIC BASE Uf = 5 V if = 1,3 A Typical Characteristics: Ua = 300 V Ug1 = -61 V ia = 60 mA S = 5,5 mA/V Ri = 700 Ω µ = 3,85 Limiting Values: Ua = 450 V Wa = 40 W Maximum plate curent of everage tube for fixed bias ia = 70 mA Maximum plate curent for manually adjusted grid bias or self-biasing ia = 100 mA. From Norway; 45 Tubes one National Union and one Philco ST style Power Triodes. This post will mostly be about the different variants. 45 triode tubes TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. The Zen uses four tubes: a single Svetlana, 6N1P, dual-triode tube in the driver circuit, one Philips 5Y3GT rectifier tube, and one, Svetlana SV83 output tube for each channel. Various brands. Easy and stable bias setting with onboard meter. If you would prefer to have your 45 Silver Stereo Amp built by us, we charge $2,900 with tubes or $2,800 without tubes. The Power amp (single ended) can be then operated class A2 instead of A1. $6 each - $5 (10+), $4 (100+) 350 Watts - 26. May be it's the warm sound produced by these tubes or because I like horn speakers and I know that this relation is erotic. com : Handmade Blue Triode Radio Vacuum Tube Hi-speed 4 Ports USB 3. Similar to JE Labs/Sun Audio 45 amplifer using fabulous 76 input Triode direct coupled to 6SN7 driver. Manufactured by Ulyanovsk factory in 1968-1975's (Old Logo). Welcome to Tubes U S A. Triode mode pentodes sound great, but in pentode mode - they sound really BAD. electrons from escaping from the tube containing the triode. (unless there is a switch to change the modes) This applies to ultralinear circuits etc. It will not sounded over-power although the power is doubled, but it adds alot more control / improved clarity of sound-stage, more weight, and even more extended highs and more pronounced bass. Replace the DRIVER tube! Of 6CL6's that are available on the market, this is the best there is. Re: Triode Lab 2A3-S « Reply #37 on: 11 Feb 2014, 11:15 am » @Sebrof: I'm with you on the iron, my 45 SET has electraprint, and the bigger/better iron you can use is important as I read/understand it. ECC82 / 12AU7 Medium-Mu Twin Triode. The most commonly used amplifier stage is the common-cathode amplifier. The oxide-coated filament operates at 2. Originally issued as a tubular tube like the 99, then S-12 and later ST-12 bulbs were adopted. ) operated in highly efficient zero-bias Class B triode, cutting costly power supply requirement stand eliminating bias supplies, the tradeoff being the necessity of well regulated power supplies due to the wide variations in plate current, and the need for a power driver circuit ahead of the output tubes, the output. High frequencyelectron tube,power grid tube itl5-1,vacuum triode tube itl12-1 1. Conrad Johnson ART27A Stereo Triode Tube Amp art27. Welcome to Tubes U S A. my tech add rca jack & speaker jack for mordern hifi. 3) Click here to see UX-226 "Phaeton" Tube Preamp by Jim De Kort T0 BUY TYPE 26 Type 27 (ST-shape) (Very good preamp tube or amplifier input tube, 2. Efficiency and reliability are paramount for them and this latest design, with the support of UnitedSiC products, excels in both respects. 5U on 11st Apr 2014 from Japan Hashimoto 71A/45 Single EndedAmplifier Tubes Data from tubebbs. electrons being repelled back to the cathode. must be use tiode. Tube Data Sheet Locator. Vacuum Tube - 45, Triode Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired. This amp is a must have for speakers with over 100 db - this will turns your forward sounding / thin sounding speakers back into normal HIFI music. Can replace the 20 if the filament voltage is dropped. They have the same sense of texture and tone with great details. Naturally, as an Audiophile and lover of good music, you cannot ignore either the input or driver tubes designed to drive this kind of output power. Power output: 45 watts per channel. com Page 3 Version 2. The housings and the Mains-Transformers are designed for the use of different Rectifier- and Driver-Tubes. - Telefunken 1954 (German). The input/driver stage is new design for EML 1605 power tube, The input ECC81 tube use M-CAP® Supreme Silver / Gold & Oil coupling cap to 45 triode power tube to driver Hasimoto A-305 Interstage transformer, This new design driver stage got the wide frequency range and very good sound. 00: out of stock: 102D Western Electric Tennis Ball tube, metal base and black base available, RARE: Tested and guaranteed. The input impedance of the amplifier is set by the 100K Radio Shack/ALPs volume control. Tube amps by Tom McNally JE Labs SRPP 245 - 45/2A3 Single Ended Triode 2. Various brands. 14 shipping; 2 1936 Heintz & Kaufman Gammatron 354C Triode Amplifier Vacuum Tubes NOS TESTED. Very popular choice for low powered single ended amplifiers, usually used to drive horn loudspeakers. 1 grid plate. I do not know why but I prefer simple, low power triode designs. Vacuum Tube - 45, Triode Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired. Early 45 triode ( 245 Tungsram ) , author's collection. 2019 0 877 Audiophile. the electrons from being attracted to the grid instead of the anode. The output tubes that Anthony sent are NOS NU's (National Union Electronics). 00 for the pair. 36LW6 Triode (I've heard these may not like running in triode ) miscellaneous of interest: 21HB5A grid2 drive perfect (in) triode 1E7G (only 1. Best sound of the 45 is developed at the very sweet first Watt. And the Korneff amp is one of the very best. Free shipping is limited to the contiguous 48 states. Another way to light the tube is to use two D cells with a 20 ohm resistor in series. Excellent upgrade for RCA-45, VT45, VT52 and all classic 45 type triodes. Bad bad bad. However I didn't seem to find a high voltage single double triode schematic. From Oliver's ad: "Selling a nicely made and great sounding single ended 45 Triode amplifier. Tube 45 or Röhre 45 ID3112, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. Rectifier Tubes 274A / 274B Mesh $336 5Z3 Mesh $336 5U4G Mesh $336 80 Mesh $336 AZ4 Mesh $381 81 half wave $336 (see notes below regarding rectifier usage) Driver Tubes 20A / 20B $ 651 30A $661 20A mesh $734: Output Tubes 45 $681 45B * - $702 Special order only 45-Mesh $764 45-Mesh Globe $996 50 $903 2A3-S $709 2A3-Mesh. The term most commonly applies to a three-grid amplifying vacuum tube (thermionic valve), which was invented by Gilles Holst and Bernhard D. This DIY 300B triode amplifier project was completed by Stamou Tasos who is from Greece. 00: days/views: 1984 / 1357 (posted 2014-11-21) this is one of several triode 45 and dyna 70 based amps i will be offering in the next couple monthsmost of these amps i built for myself and were never offered for sale, but i can"t keep them all for myself. 2A3 Tube amp "a tribute to simplicity". ,4- EA 4ND R. Similar to JE Labs/Sun Audio 45 amplifer using fabulous 76 input Triode direct coupled to 6SN7 driver. 30 Day Rock Solid Warranty on ALL NOS Tubes! We 100% Test each vacuum tube before shipment to assure you the best quality possible! We accept all Major credit cards and Paypal! Easy and Safe, 100% Secure Online Ordering. Details Add to cart. So it deserves a revisit. $17 each - $15. 25 x 6 inches, 10 lbs). I built these last summer and was thinking about keeping them for my collection. The input/driver stage is new design for EML 1605 power tube, The input ECC81 tube use M-CAP® Supreme Silver / Gold & Oil coupling cap to 45 triode power tube to driver Hasimoto A-305 Interstage transformer, This new design driver stage got the wide frequency range and very good sound. I chose to use an SRPP driver using a 6SL7 or 12SL7 to drive the 45 output tube, and chose to operate the 45 with 250V on the plate, at a plate current of 36mA which is close to the recommended. No assumption is implied on the number of output devices. Charles, MO 63304 Phone 636-939-9190 24 Hour Fax 636-922-0601. Very musical and precise, available in super silent variant (carefully selected by MaPlatine. This amp uses the type 46 tube in the output stage, which is a dual grid direct heated triode similar in electrical specs and sound characteristic to the legendary 45 and the 5842/417a for the input stage. Last update of this mirror site: 2020-05-04 Electron tube Type: Brand: System: Data sheet. It uses two high-quality broadband sound output transformer EI It uses the toroidal power transformer, which was developed specifically. The 45-triode sound signature is even more pronounce, liquid, and silky. For Computer Tablet PC Notebook Laptop Mac) : Computers & Accessories. Cees Pel, a fellow tube-enthusiastic, advised me in also using super E-cap at the filament power supply. The 6SJ7 tested was very close to specifications, despite its age. Like a sailor on the ocean at night, the twin 2A3 tubes gave me constant companionship and extraordinary sound. Typical triode valve / tube circuit. The most popular SET amplifiers use three types of triode tubes: the 45, which produces around two watts per channel; the 2A3, which produces around five watts; and the 300b, which produces around. The interstage transformer direct coupling to EML 1605 power tube , The EML 1605 power tube working at Class. The injector grid of the heptode is internally connected to the triode grid. A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (). Pentode, triode, and UL mode plots for the GE 6550A are shown below. - mouse placing on the Factory logo - gives Factory Name. 2x tube rca radiotron ux-245 engraved base triode matched pair balloon direct heater triode large d getter tested with tv7 tube tester test results tube 1= 59 (where 47 = 100%) test results tube 2= 59 (where 47 = 100%) 192552543948. This original L & W uses a 24 pentode to drive the 45 power triode - directly…. Triode mode pentodes sound great, but in pentode mode - they sound really BAD. Despite being relatively low powered, 2A3 still is the triode of. The 45 tube will draw some 36mA, which is still within the limits of OD3 and it will provide you with a tremendous 2000 milliWatt’s into a load of 4-5kΩ ). In fact, my office system centers on their 45 wpc push-pull integrated amplifier and tube CD player with a Rega P3-24 linked to the whole thing by an Audiomat Phono 1. 6BL8 - NOS Mullard Australia Old logo some smudging of the white printing. It is ideally designed to replace the OEM tube on high-end equipment. 5 volt D cell. Home | Products | Electron Tubes & Vacuum Devices | Triode Triode. For over three decades, Kimber Kable has led the audio/video cable industry in technology and precision manufacturing. 2A3 , 45 single ended Amplifier ever I did built up. GZ33 Mullard full wave rectifier. To give some idea of the scale, the tiny tube on the left (by the multimeters) is a 12AT7 double triode, the larger tube on the right hand is a 3-500Z, a modern 500 watt triode. (F) means "Filamentary", and (H-K) means "Heater-Cathode. introducing 2019 300B SE dual mono tube amplifier model B-1, 8 watts 1% THD FLUXION audio - Duration: 2:07. electrons being repelled back to the cathode. p = Pentode Unit. 3C45 – 45 mA avg, 1. HIGH EFFICIENCY TRIODE VACUUM TUBE Filed July 25, 1958 3 Sheets-Sheet 1 INVENTOR. The valve is biased by a set of 5 red LEDs to about 8V. Triode working mode suits for soft music. We can provide oscillation tube for 1. This auction is offering a pair of Raytheon ST shape #45 Power-Amplifier Triode radio vacuum tubes. 30 Day Rock Solid Warranty on ALL NOS Tubes! We 100% Test each vacuum tube before shipment to assure you the best quality possible! We accept all Major credit cards and Paypal! Easy and Safe, 100% Secure Online Ordering. Rca 45 Tube X 3 Müzik Seti Lambaları İlan No: #40481 İlan Tarihi: 22. NAF parallel single ended 845 mono blocks amp & Triode Lab 2a3 parallel mono blocks. 5 Tube Selectors Bias Eng Press Notes 00A 5 JR-3200- 33 28 P4 420 W 01A 5 JR-3200- 48 32 P4 455 W 0A4 5 KS-0581- 100 91 P5 O 0Y4 Blst JX-3502- 0 45 P2 Short on 1-2-5. the variations in voltage from getting too large. Khozmo 48 steps attenuator with remote control and 5 line inputs. com : Handmade Blue Triode Radio Vacuum Tube Hi-speed 4 Ports USB 3. Took a hammer to have a look inside, very clearly you can see there has been some arcing IN the tube between Grid and Kathode. DIY 300B Single-Ended-Triode (SET) Hi-Fi Amplifier. Thales is a leading manufacturer of power grid tubes covering a wide range of applications including broadcast, industrial and scientific. 4x150a Transmitting Tetrodes Lot of 4 Tested Tube Valvo Eimac HAM. pdf (54970 bytes) Frank Philipse (Wildcat mirror - Jörg Jan Münter). I am afraid of reduced lifetime of the tubes when Vg2 is at the anode voltage 425V DC and peak AC voltage approaches 600V. New old stock 4 pin triode. matching pair of vintage presto mono tube amplifiers. This item Triode vacuum tube stereo Integrated Amplifier TRIODE RUBY Reisong A10 EL34 Hi-Fi Audio Stereo Tube Amplifier Single-end Class - A Amp B07L4GL63N Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone (Silver) B08133TH98. will vincent 45 triode tube amp one of several to be offered: price: $1,300. Designing Common-Cathode Triode Amplifiers. This is an easy to build, simple direct-coupled input/driver circuit that provides the proper drive voltage to the grid of the 211. make offer - strong pair 45 rca tube radiotron ux-245 345 globe dht engraved valve triode New Matched Pair 45/n TJ Fullmusic Vacuum Tube Mesh Plate Vintage HIFI AMP DIYx1 $299. ELAND HIGH EFFICIENCY TRIODE VACUUM TUBE Jan. The Teflon tube sockets with chromium/copper input terminals and the pure copper speaker terminals are all proprietary and original Yamamoto issue of the very highest. Description | Triodes can be used in both broadcast and industrial applications and are desired for their simple, yet highly stable design. It is the queen of tone. Another consideration is the linearity of the grid-plate transfer characteristic, that is, the linearity of the dependence of the plate current on the control-grid voltage; in present-day tubes, third-order distortions have been reduced to –45 dB. To run a beam power or pentode tube in triode mode, strap the screen grid to the plate (e. In the triode, electrons are released into the tube from the metal cathode by heating it, a process called thermionic emission. For all technical aspects about the 45 see the original Tube of the Month post. What voltage do you have on tube filament pins while in the tester. The Triode 25 can operate in two modes: triode and pentode. Similar to JE Labs/Sun Audio 45 amplifer using fabulous 76 input Triode direct coupled to 6SN7 driver. The Mono-blocks are designed and voiced differently with a more modern type of presentation, but overall are similar to the 2A3 Stereo in a general sense. The analog triode tube emulator circuit of claim 1, wherein currents at the second node satisfy the equation: i p = K 5 ⁡ ((v pk-v π) + (v pk-v π) 2 + 4 ⁢ (v λ) 2 2 ⁢ ⁢ v λ) P ⁢ m ⁢ ⁢ A ⁢ ⁢ where ⁢: v π =-(K 6 ⁢ v gk + K 7) + (K 6 ⁢ v gk + K 7) 2 + 4 ⁢ (K 8) 2 2 + K 9, and v λ = (K 10 ⁢ v gk + K 11) + (K 10. Source from Jinzhou Huaguang Electron Tube Co. Originally issued as a tubular tube like the 99, then S-12 and later ST-12 bulbs were adopted. It must have that classic tube sound. 17, 19 1 Filed July. 3 ultimate power tube 45 stamp Logo tube 1936 year made gm low. I have assisted by translating, formating and presenting his DIY 300B triode amplifier. Lovely tubes - clear heavy glass and meticulous construction. It is the successor of the glorious 27 / 56 family of tubes and has been declined in numerous shapes (G, GT, Metal) and constructions (i. 12/10/11- Manu's JEL Simple 45/2A3 Stereo completed. To review, I wrote:. This project is recommended for beginning vacuum-tube do-it-yourselfers. Some of the gold plating on the pins is missing. Time Machine 45/2A3. 45 AM: Hi oshifis, I made some modifications to the. The 45 tube requires a 5,000-ohm output transformer. The twin 2A3 tubes on the Triode Lab 2A3M-II monoblocks became the Gemini constellation in the dark nights of audio listening afforded me during their tenure at my home. Personally I'm using 245 triode for the mid/high of my bi-amp system. 2PCS 6S45P-E / WE437 / 6C45P / EC8020 HI-END TRIODE TUBES! NOS! OTK! RARE 70'S! All Tubes made by Reflector military plant and have "OTK" test marking. The white print on the glass has the PQ badge for special quality. View credits, reviews, tracks and shop for the 2012 Vinyl release of On N'A Pas Fini D'Avoir Tout Vu on Discogs. This amp is a must have for speakers with over 100 db - this will turns your forward sounding / thin sounding speakers back into normal HIFI music. The Zen Triode measures 15 x 25 x 16 cm, and weighs about 4. The 6550A data sheet is available from Frank's electron tube pages. Some of the gold plating on the pins is missin. TJ 45 Valves - Matched pair only. Free shipping is limited to the contiguous 48 states. A power amplifier with the '45 or 2A3 as power tube will not exceed 350 Volts B+, and because of the '45 being one of my all-time favorite tubes, this would be the choice. If you are looking for real triode sound, the 45 tube is very interesting. 10/29/11- Kenny Kim's 1626 Darling SET stereo completed. Triode Dick's Page TentLabs filament supplyto apply with directly heated tubes A pleasant surprise The result is still a tad too much hum, although tubes fed with 2,5V (like 2A3 or 45) seem to operate fine with AC when taking hum levels into account. Tube data & amp schematics online 45 (same as 245,345) Page 1 Page2. 0: 13EM7: 80: 2A3 SE Amplifier: Schematic only. Then without NFB, the distortion from the 45 amplifier will cancel out much of the distortion from the Power output tube (perhaps it is a big triode like a 300b or 845). It is a 2-stage resistance coupled amplifier using a 6SL7 - a hi-gain [mu], lo-transconductance [gm] dual triode as the input/driver tube capacitor coupled to the grid of either a 45 or 2A3 power triode operated in cathode bias. Need tubes for your audio gear or guitar amp? 45 : Output Tube : Triode : Inquire: 56: Pre-Amp Tube : Triode : Various - Inquire : 76: Pre-Amp Tube : Triode : Various - Inquire : 71A : Output Tube : Triode : Various - Inquire. com Page 3 Version 2. 142: Posted on February 27, 2020 at 11:14:41. Title: 45 Author: RCA Subject: FP-1999-10-10 Created Date: 10/10/1999 4:05:10 PM. DIY tube amplifier projects based on Alan Kimmels mu-stage design. Tubes are from our stock. The Teflon tube sockets with chromium/copper input terminals and the pure copper speaker terminals are all proprietary and original Yamamoto issue of the very highest. There are even commercially sold adapters to use the 1619 in place of the 45 for those who don't want to construct their own or replace the sockets. Low parts count design using excellent Western Electric 417a/5842 high transconductance driver tube, point to point wired using Kimber copper/WBT silver solder and audio grade parts (F&T/Elna electrolytics, tube era Allen Bradley/mills resistors, Paper/oil coupling capacitors) and wonderful sounding OS. Single Ended: 9. The valve is biased by a set of 5 red LEDs to about 8V. the variations in voltage from getting too large. Attention Collins owners. 20% change doesn't matter much, and either way it is not worce or better. Today I am listing my last pair of Pure class A triode, single ended mono amplifiers. It's all about a double project. Original boxes. A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (). Comparing Eight Tubes For Low Power Amplifiers Article Submitted By Mike Zivkovic Of Teresonic. Vacuum Tube - 45, Triode Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired. So it deserves a revisit. Emission Labs Tubes. Free shipping is limited to the contiguous 48 states. 5,678 results for triode tubes 2 NOS tubes triode EB III = AD1 TELEFUNKEN (910021) 45 Tubes one National Union and one Philco ST style Power Triodes. All the best brands and all the key vales like 12AX7, 12AU7, 12AT7, ECC83, EL84, EL34, 6V6, 6L6, 5881, 6CA7 and so many more. make offer - strong pair 45 rca tube radiotron ux-245 345 globe dht engraved valve triode New Matched Pair 45/n TJ Fullmusic Vacuum Tube Mesh Plate Vintage HIFI AMP DIYx1 $299. Type 26 / 226 / UX-226 / CX-326 Triode (Similar to type 01A with higher Gm, 1. 51 because they were sold as "in fair shape, one is between good and bad". Arctus 2A3. Pentode, triode, and UL mode plots for the GE 6550A are shown below. Choice is mandatory, useually taken "as available" from some manufacturer. The Triode 25 can operate in two modes: triode and pentode. A tube triode consists of a hermetically sealed, evacuated glass bulb containing three electrodes: a thermionic cathode 270 0. This mod can be done in most any Fender or Marshall type amp, or any amp which utilizes a pentode-style output tube, such as a 6L6, EL34, 6V6, 6550, KT66, KT88, etc. The pentode consists of an evacuated glass envelope containing five electrodes in this order: a cathode heated by a filament, a control grid, a screen grid, a suppressor. [15][16] von Lieben's vacuum tube did not see much development due to his death 7 years after he invented it at the outbreak of De Forest Audion tube from 1908, World War I. A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (). 2-5 Watts pure undistorted class-A power. Check out my new ride here. When I find a 2 volt lead acid cell, I will use that. Various brands. To allow monitoring of output tube condition, Shigeki-San has added an ampere meter that should read 35-45mA for each 45 (a three-pole toggle selects which tube is displayed). The Korg Nutube 6P1 is a modern update of the classic dual-triode thermionic valve (vacuum tube) based on vacuum fluorescent display (VFD) technology. With brands such as Western Electric,. We carry current production 2A3 and 300B as well as SV811 and SV572 super triode tubes. The 2A3 vacuum tube is a power triode capable of outputting 3. 5 Tube Selectors Bias Eng Press Notes 00A 5 JR-3200- 33 28 P4 420 W 01A 5 JR-3200- 48 32 P4 455 W 0A4 5 KS-0581- 100 91 P5 O 0Y4 Blst JX-3502- 0 45 P2 Short on 1-2-5. SND Tube Sales. We make available to the end user, the finest vacuum tubes built today for your listening experience. bekannt) und liefert 1,6 bis maximal 2 Watt. What I liked most about the TU-879S tube amplifier was the seemingly endless amount of tube combinations that were possible. Browning 12AU7 (ECC82) Twin Triode The Browning 12AU7 (ECC82) Manufactured for and used extensively by Browning Laboratories, Inc. To run a beam power or pentode tube in triode mode, strap the screen grid to the plate (e. 5U on 11st Apr 2014 from Japan Hashimoto 71A/45 Single EndedAmplifier Tubes Data from tubebbs. 2 V, showing that the plate current, 0. My 6SJ7 gave a gain of -60 at V bb = 90 V, and V p was 27. 45 triode with ST shape. tube tubes buis buizen versterker buizenversterker triode triodes penthode mu-stage direct-heated dht projecten projects line-amp amp amplifier riaa 300B 211 2A3 D3a Kimmel Little Ceasar MonoBill Goliath Attila PhonoDude Cleo. C $1,324 2A3 Stereo Tube Triode Singled Ended Amplifier Edcor Trans Tube 45 5Y3 6SL7 SE. DIY tube amplifier projects based on Alan Kimmels mu-stage design. It consistently had the most depth, the best tone, and the best capacity to handle complex. Re: Triode Lab 2A3-S « Reply #37 on: 11 Feb 2014, 11:15 am » @Sebrof: I'm with you on the iron, my 45 SET has electraprint, and the bigger/better iron you can use is important as I read/understand it. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. (unless there is a switch to change the modes) This applies to ultralinear circuits etc. *You may need to lightly sand the back of the potentiometers to be able to solder the bus wire correctly. With the exception of GT-12AX7M-2, all measured tube distortion is primarily 2 nd order (octaves). It is among the 2 favorite directly heated triodes of mine. Talkin' Tubes ; Triode Guys, Why use a 46 over a 45 tube + Adapters ? Sign in to follow this. TRiode Base: 4-PIN CERAMIC BASE Uf = 5 V if = 1,3 A Typical Characteristics: Ua = 300 V Ug1 = -61 V ia = 60 mA S = 5,5 mA/V Ri = 700 Ω µ = 3,85 Limiting Values: Ua = 450 V Wa = 40 W Maximum plate curent of everage tube for fixed bias ia = 70 mA Maximum plate curent for manually adjusted grid bias or self-biasing ia = 100 mA. make offer - strong pair 45 rca tube radiotron ux-245 345 globe dht engraved valve triode New Matched Pair 45/n TJ Fullmusic Vacuum Tube Mesh Plate Vintage HIFI AMP DIYx1 $299. The 45 is one of the best sounding SET tubes. Wiring Layout: JTM 45 WIRING LAYOUT jtm45tubeampkit $529. So far I have been running it on a 1. We carry current production 2A3 and 300B as well as SV811 and SV572 super triode tubes. Last update of this mirror site: 2020-05-04 Electron tube Type: Brand: System: Data sheet. 25 x 6 inches, 10 lbs). Price is for a Single Tube. It uses 4* EL34 vacuum tubes to be the Class AB1 push-pull power amplifier It provides triode and ultra- linear selection function. Triode, designed to be used as the output valve in domestic AC mains powered radios. New-Old-Stock (NOS) tube. This type was introduced by RCA in 1929 as the UX245, Over the years the type number became abbreviated to 45 and the bulb changed from the globe shape of this example to the later shouldered 'ST' style. make offer - strong pair 45 rca tube radiotron ux-245 345 globe dht engraved valve triode New Matched Pair 45/n TJ Fullmusic Vacuum Tube Mesh Plate Vintage HIFI AMP DIYx1 $299. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. hp = Heptode Unit. Like the von Lieben vacuum tube, De Forest's Audions were incompletely evacuated and contained some gas at low pressure. Very clean balloon shape 45, one of the classic vintage power tubes of all time! $145. 25, 1958 3 Sheets-Sheet 2 INVENTOR. A good example is the 6AF11, a three-tube portmanteau consisting of a high-mu triode for AGC keyer service, a medium-mu triode for sync separator service, and a sharp-cutoff pentode for video amplifier service. 5 volt D cell. Similar to JE Labs/Sun Audio 45 amplifer using fabulous 76 input Triode direct coupled to 6SN7 driver. We obtained over 150 pieces of these NOS Penta 2A3 tubes. The 6SJ7 tested was very close to specifications, despite its age. DIY 300B Single-Ended-Triode (SET) Hi-Fi Amplifier. We’d considered using both 5687 or 6H30 tubes, but both will require a 2-stage design (plus the availability of tubes is. com 435 S PACIFIC ST SAN MARCOS, CA 92078. The latter is capable of delivering a maximum power output of over 45 watts per channel (6Ω load) with minimal harmonic distortion across the entire audio band. 53 shipping; 12 Watching. 9, 5 Volt filament voltage and a dilament current of 1. 807 triode push-pull audio circuit. Talkin' Tubes ; Triode Guys, Why use a 46 over a 45 tube + Adapters ? Sign in to follow this. SUBSCRIPTS FOR MULTI-UNIT TUBES: b = Beam Power Unit. matching pair of vintage presto mono tube amplifiers. The grid in a triode is kept negatively charged to prevent… A. Valvet E2se, NuForce STA200, AkitikA GT-102 amp, ASL Wave monos, Dennis Had 45 monos. So low power tubes sound best at high efficiency speakers, and vice versa. EMAIL FOR INFO $689. Wholesale & retail trade. In the triode, electrons are released into the tube from the metal cathode by heating it, a process called thermionic emission. 2A3 / 45 Tube Mono-Blocks. Quality is no accident. Another consideration is the linearity of the grid-plate transfer characteristic, that is, the linearity of the dependence of the plate current on the control-grid voltage; in present-day tubes, third-order distortions have been reduced to –45 dB. Easy and stable bias setting with onboard meter. Emission Labs 45 for drivers (inductive coupling). The white print on the glass has the PQ badge for special quality. Transformers for Fender and Marshall Tube Amps: DIYTube Dynaco ST35 Tube DIY Amp Kit - DISCONTINUED -STILL HAVE CHASSIS & ASSORTED PARTS. The SV83 (6P15P-EV) or EL84 output tubes wired in triode were chosen over 300B, 2A3, 45, and other triodes for having the best sound and imaging. 2A3 Tube amp "a tribute to simplicity". 2A6 is driver. Typical triode valve / tube circuit. Calculation of Singe Ended Triode Amplifier. Title: 45 Author: RCA Subject: FP-1999-10-10 Created Date: 10/10/1999 4:05:10 PM. 5 W in a single-ended Class A configuration. The KR52BX is a medium power triode capable of providing an output of 45 watts RMS in Pure Class A. It uses two high-quality broadband sound output transformer EI It uses the toroidal power transformer, which was. Both same 1974 date code in Military white boxes with pin keepers. [17] the first triode. This 1966 Amperex 5842 tube is a 417A triode tube type made famous by Western Electric. The 2A3 tube was introduced in 1932, designed specifically for the audio amplifier output stage. Triodes have lower power gain than tetrodes, but can achieve output power up to 1. LS7 CV1660 GEC Audio Triode Valve Tubes British Be the first to review this product £45. It is important that tubes and speakers fit together well. SND Tube Sales. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. Tube data & amp schematics online 45 (same as 245,345) Page 1 Page2. The GS-35a version of this tube which is intended for water cooling, which adds 500W to the allowable anode dissipation. Designing Common-Cathode Triode Amplifiers. Easy and stable bias setting with onboard meter. Review By Rick Becker In our last episode of High Efficiency Adventure, the review of the Zu Audio Union loudspeaker, I spoke with delight about the 2A3 Classic Mk2 power amp mated with the very high efficiency Zu speaker. The 811A vacuum tube it is a power triode capable to output 10 - 15 Watts in a single ended class A2 configuration, in a three stages circuit using interstage transformer in the driving stage. for 6V6 this would be pins 4 & 3. Going parallel makes everything more consistent, and easier to get to the best triode sounding point. 6550A Pentode mode plate curves. Make to order only - 2A3/45 Mini Integrated is hand wired thru out, a circuit board is used to mount the triode tube socket, coupling cap and loading resistor only. Today I am listing my last pair of Pure class A triode, single ended mono amplifiers. 36) Posted by Rob on 2000-04-03, 08:33:03 (209. This pair of factory matched solid plate EML45 tubes are used and sound great in my 45 amp. Old School voltage regulation without fragile transistors. Interestingly, the euphonious nature of the Single-Ended Triode (SET) Amplifier can be demonstrated even via mp3 files! A simple A/B comparison is available on the Sound clips page. You cannot have an output transformer that would be the perfect match for a 45 and at the same time a perfect match for a 2A3 tube. So the old Tube is RIP. Triode Lab Mono Power Transformer, proprietary designed for 2A3/45 Single Ended Triode application (CSA/UL Compliance) 80 db Signal to noise ratio / A Weighted (Conservatively rated). If you are replacing a 5AR4 let the tubes warm up a little before applying signal. as you expect from a classic high end Single Ended Triode amp. New old stock 4 pin triode. Near the front of the amplifier, a 5-position input selector allows a choice of two input transformers, muting, and phase inversion. Our integrated 45 SE amp will accept your CD, tuner or phono stage. The Zen uses four tubes: a single Svetlana, 6N1P, dual-triode tube in the driver circuit, one Philips 5Y3GT rectifier tube, and one, Svetlana SV83 output tube for each channel. They have the same sense of texture and tone with great details. The 45 still uses the (Sovtek) 6C45Pi driver tube and the (Sovtek) 5AR4 rectifier tube. 2A3/45 Single Ended Amplifier with Hashimoto H-20-3. When the 45 was introduced, it was quite a step in achievable output power. 5 and a powerful 4. 8w, so not exactly powerful! I have successfully used 300b amps before, but they were 7w or so, that's four time as much!. Products and Links. - mouse placing on the Factory logo - gives Factory Name. 53 shipping; 12 Watching. SND Tube Sales. 2 Vintage Sylvania 8CS7/6CS7 Double Triode Dissimilar Tube Valve- BangyBang Tube. tube tubes buis buizen versterker buizenversterker triode triodes penthode mu-stage direct-heated dht projecten projects line-amp amp amplifier riaa 300B 211 2A3 D3a Kimmel Little Ceasar MonoBill Goliath Attila PhonoDude Cleo. Triode–1 of each tube was then evaluated for LO GAIN and HI GAIN in a preamp circuit that emulates a conservative mic preamp and a more aggressive guitar preamp, respectively. Transformers for Fender and Marshall Tube Amps: DIYTube Dynaco ST35 Tube DIY Amp Kit - DISCONTINUED -STILL HAVE CHASSIS & ASSORTED PARTS. Also known by US military identifier VT-52. They are on order. Noval Dual Small Signal Triodes. LS7 CV1660 GEC Audio Triode Valve Tubes British Be the first to review this product £45. Originally issued as a tubular tube like the 99, then S-12 and later ST-12 bulbs were adopted. I will include a spare 76 tube. It uses two high-quality broadband sound output transformer EI It uses the toroidal power transformer, which was. It would be a bad mismatch for either the 45 or the 2A3 or maybe both. This DIY 300B triode amplifier project was completed by Stamou Tasos who is from Greece. Die Triode ´45 ist eine sehr verbreitete, bekannte direkt geheizte Triode und ihre Vorstellung damit obligatorisch. Attention Collins owners. New old stock 4 pin triode. electrons being repelled back to the cathode. Need tubes for your audio gear or guitar amp? 45 : Output Tube : Triode : Inquire: 56: Pre-Amp Tube : Triode : Various - Inquire : 76: Pre-Amp Tube : Triode : Various - Inquire : 71A : Output Tube : Triode : Various - Inquire. The input stage begins with a 6SN7 operated under conservative conditions, to preclude distortion. It's gratifying to see the excellent agreement with data in all three modes. 6S33S-V is an extra durable military grade power triode tube, used in Hi-End audio amplifiers. Calculation of Singe Ended Triode Amplifier. (one triode amplifies one signal only). The Type 45 is a directly heated audio output triode. 51 because they were sold as "in fair shape, one is between good and bad". Buddy Rich. The Teflon tube sockets with chromium/copper input terminals and the pure copper speaker terminals are all proprietary and original Yamamoto issue of the very highest. Hi All, I am at the beginning stage of having a 45 SE Triode stereo amp built, I already have a power transformer and some other bits and pieces, what I would like help with is a 45 SE Triode Schematic that allows for the amp to be direct coupled, I am considering using a 5V3A/5AU4 Rectifier tube. 6 Volts / If 0. requires drilling a hole. 16 +vat +p&p. CuriosityShopper 5 out of 5 stars (788) $ 135. Designing Common-Cathode Triode Amplifiers. The Zen Triode measures 15 x 25 x 16 cm, and weighs about 4. Tube data & amp schematics online 45 (same as 245,345) Page 1 Page2. Single triode Vacuum tubes, capacitors, nixie tubes, sockets. High trans-conductance and high µ triodes or pentodes (triode wired) are certainly the best choice. Our website features secure payment options and fast, convenient shipping around the world. Similar to JE Labs/Sun Audio 45 amplifer using fabulous 76 input Triode direct coupled to 6SN7 driver. Need tubes for your audio gear or guitar amp? 45 : Output Tube : Triode : Inquire: 56: Pre-Amp Tube : Triode : Various - Inquire : 76: Pre-Amp Tube : Triode : Various - Inquire : 71A : Output Tube : Triode : Various - Inquire. To my ears. 93 Mutual conductance (at anode voltage, 600 V, grid voltage change 0. So far I have been running it on a 1. This qualifies as cheap, so I decided to build a single ended 45 amp. SND Tube Sales. 45 Mini Single Ended Triode Stereo Amplifier So here is the small or mini version to our reference 2A3i. It's gratifying to see the excellent agreement with data in all three modes. I chose to use an SRPP driver using a 6SL7 or 12SL7 to drive the 45 output tube, and chose to operate the 45 with 250V on the plate, at a plate current of 36mA which is close to the recommended. Solid state rectification is used to give lower bass distortion. 36LW6 Triode (I've heard these may not like running in triode ) miscellaneous of interest: 21HB5A grid2 drive perfect (in) triode 1E7G (only 1. This monoblock, gives about 23 watts rms into an 8 ohms load. I will include a spare 76 tube. Despite being relatively low powered, 2A3 still is the triode of choice for many high-end audio amplifiers and DIY projects. POWER TRIODE , R. Low parts count design using excellent Western Electric 417a/5842 high transconductance driver tube, point to point wired using Kimber copper/WBT silver solder and audio grade parts (F&T/Elna electrolytics, tube era Allen Bradley/mills resistors, Paper/oil coupling capacitors) and wonderful sounding OS. See other identical denominations too. Hi All, I am at the beginning stage of having a 45 SE Triode stereo amp built, I already have a power transformer and some other bits and pieces, what I would like help with is a 45 SE Triode Schematic that allows for the amp to be direct coupled, I am considering using a 5V3A/5AU4 Rectifier tube. It consistently had the most depth, the best tone, and the best capacity to handle complex. 8w, so not exactly powerful! I have successfully used 300b amps before, but they were 7w or so, that's four time as much!. The latter is capable of delivering a maximum power output of over 45 watts per channel with a load of 6 ohms with harmonic distortion extremely contained across the entire audio band. Design engineers or buyers might want to check out various Triode factory & manufacturers, who offer lots of related choices such as electronic tube, vacuum valve and electron tube. But now they are for sale. A nice way to experiment with a single-ended (SE) triode amplifier. Regular price $3,995. So it deserves a revisit. Conrad Johnson ART27A Stereo Triode Tube Amp AudioShark - The Best High End Audio Discussion forum. 25, 1958 3 Sheets-Sheet 2 INVENTOR. A triode is teamed with a diode, a triode with different characteristics, a tetrode, or a pentode, are listed in other tables. Frank's Electron tube Pages Tube Number Systems European system after 1934; Philips system before 1934 small-signal triode D power triode E small-signal tetrode (or 2nd emmission tube EE1) F small-signal pentode 45, 55 etc hf tetrode with variable gain 46, 56 etc hf pentode 47, 57 etc. I chose the 2A3 directly heated triode power tube to implement the Loftin-White circuit. In a triode there are always parasitic anode-to-grid capacitances caused by constructive reasons. For precision. The Korg Nutube 6P1 is a modern update of the classic dual-triode thermionic valve (vacuum tube) based on vacuum fluorescent display (VFD) technology. The mod is easy and costs nothing. The Triode 25 can operate in two modes: triode and pentode. The article compares eight different output tubes of low power in Single Ended (SE) mode, both triode and pentode, for compatibility with classical and jazz music listening using Lowther high-efficiency drivers in Teresonic speakers. The 45 is an absolutely magnificent tube. ,4- EA 4ND R. A nice way to experiment with a single-ended (SE) triode amplifier. Talkin' Tubes ; Triode Guys, Why use a 46 over a 45 tube + Adapters ? Sign in to follow this. The twin 2A3 tubes on the Triode Lab 2A3M-II monoblocks became the Gemini constellation in the dark nights of audio listening afforded me during their tenure at my home. Evatco has in stock the best brands of preamp and power tubes for your tube amplifier. For curves on Triode #1, see 12AX7. Triode USA Dynaco ST-70 Tube DIY Amp Kit $979. The input impedance of the amplifier is set by the 100K Radio Shack/ALPs volume control. Tube 45 or Röhre 45 ID3112, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. These cute little guys produce around 40 watts RMS in Ultra-Linear mode or around 20 watts in TRIODE from a quartet of EL84 / 6BQ5 tubes driven by a 6414 dual triode driver and a 12AT7EH input dual triode. This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. It is the queen of tone. 51 because they were sold as "in fair shape, one is between good and bad". Röhrentabellen - Übersicht Trioden. I am afraid of reduced lifetime of the tubes when Vg2 is at the anode voltage 425V DC and peak AC voltage approaches 600V. This amp is a must have for speakers with over 100 db - this will turns your forward sounding / thin sounding speakers back into normal HIFI music. notice: local pick up is most welcome. Enrico Mainardi cello. 50 (50+) General Electric Driver Tube. Cayin MT-45 MK2 tube amp KT88*4 hi-fi Audio integrated amplifier Ultra-Linear & Triode for choice, come with tube cage cover Brand New Features: Pure vacuum tube integrated amplifier Handmade soldering, no PCB. The pair can dissipate 7. I chose to use an SRPP driver using a 6SL7 or 12SL7 to drive the 45 output tube, and chose to operate the 45 with 250V on the plate, at a plate current of 36mA which is close to the recommended. Some tubes are double listed because they are power tubes and triodes such as the 2A3. This is one of my newest design "Laboratory west" triode tube amps This amp is perfect in mid-range detail, it is a solid 8 watts per channel, all vintage directly heated 45 tubes, vintage shoulder 5V4 dual rectifiers, two pentode, triode 6BL8 NOS sylvania tubes. If you purchase this kit "With Tubes" you will receive: KT66 Matched Pair, GZ34/5AR4 x 1, & 12AX7 x 3pcs. Having both Hi Z and Low Z signal taps for the input transformer gives perfect matching to tube or transistor signal sources. High frequencyelectron tube,power grid tube itl5-1,vacuum triode tube itl12-1 1. Solid state rectification is used to give lower bass distortion. It has the ability to name inputs, display the number of hours the tubes have been used, invert the signal, switch to mono, and other features. In this project, the 2A3 power tube runs at a 60-mA plate current with no signal applied and has a 410-V plate voltage. New-Old-Stock (NOS) tube. Triodes have lower power gain than tetrodes, but can achieve output power up to 1. The output tubes that Anthony sent are NOS NU's (National Union Electronics). 5 Watt) The lowest g2 voltage spec tubes have g2 close spaced to g1, giving them excellent triode curves, but unfortunately less tolerant of high g2 voltage for triode use. L VINTAGE EIMAC TRANSMITTER TRIODE TUBE VT129 304TL HAM TRANSMITTING TRIODE TUBE 0 results. Can replace the 20 if the filament voltage is dropped. Power output: 45 watts per channel. Frequency response: 20Hz to 30kHz. Power Tubes. High frequencyelectron tube,power grid tube itl5-1,vacuum triode tube itl12-1 1. 0: 2A6, 2A3: 81: Audio amplifier. 1 grid plate. I built these last summer and was thinking about keeping them for my collection. 00: 2: 10, 10Y: 10 CLICK HERE FOR CURRENT STOCK--Click at left: 10.