Ef86 tube datasheet NOS (New Old Stock) Electro Harmonix (EH) Genalex Gold Lion; JJ Electronic; PS Vane; Sovtek; Tube Amp Doctor (TAD) Tung Sol (Re-Issue) Amp Parts Menu Toggle. MarcelvdG. 04 5 5 1956. txt) or read online for free. : ua = 250 V ug2 = 250 V Rk = 135 Ω Ia = 48 mA Ig2 = 5,5 mA Ra = 5,2 kΩ u g1eff (50mW) = 0,3 V The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall. Type EF80 was first introduced in 1950. Title: EF86 Author: Tesla Subject: JHl-VC-FP-2012-05-12 Created Date: 5/12/2012 1:20:08 PM Tube EF 83 or Röhre EF83 ID1190, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. The EF86 seems to "excel in audio" (it's an RF tube) but guitars are far from presenting same requirements as hi-end audio. . 5 Volts You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. Datasheet (2003) Additional information. 6BK8 6F22 CV2901 CV4086 EF86 Z729 See also: The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 49 mm tall. 03 8 A 1960. 07 4 2 1959. 2021-10-02 2:46 am #19 The EF86 has enuff gain that you can wire it in triode and is such that it is a very sweet driver tube -- i am currently using a set of monobloks with EF86>EL84 (RH84 style) and they are no slouch -- within their power limitations they are giant killers. Other SED Winged "C" tubes . 04. 10 9 D 1957. EF183 page sheet date 1 1 1959. In PHILIPS datasheet from 4. amplifier PENTHODK pour utilisation comme amplificatrice B. Description: DUODIODE - REGELPENTODE. Tube 6267 or Röhre 6267 ID6027, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. On the EF86, you stated that pins 2 and 7 are connected by It is designed to be a high quality direct replacement for any EF86 vacuum tube or 6267 tube type. pins / tip Just Qvigstad: CV4085: DataSheet Franz Scharner More You reach this tube or valve page from a search after clicking the "tubes" tab or Title: EF86 6CF8 Author: Mazda Belvu Subject: SM-FP-2003-04-12 Created Date: 1/24/2000 11:35:55 AM The EF86 is the standard early stage audio pre-amplifier valve. Title: EF86 6CF8 Author: Mazda Belvu Subject: SM-FP-2003-04-12 Created Date: 1/24/2000 11:35:55 AM Thank you, Stan, that is a big help and answers my primary question. Be the first to review “SED 6J32P (6Ж32П) / EF86” Cancel reply. Many old vacuum tube (NOS or operational use), is still not readily available Title: 713A 717A Author: Tung-Sol Subject: JA-FP-2005-12-22 Created Date: 12/22/2005 10:51:07 PM This 2A3 Single-Ended Triode (SET) Tube Amplifier uses a EF86 input stage and a solid state power supply. 1mA current through the plate means the plate is dissipating about 0. Return to Main Index The sections are separated by an electrostatic screen. 4 pF Grid to cathode 3. VOL TAGE AMPLIFYING PENTODE Low noise pentode intended for use as R. Single-Ended Triode (SET) 2A3 Tube Amplifier Schematic. 5µV (RMS) under the EF86 Datasheets Context Search. 1 µf 70+ v c2 1000pf c8 330µf c1 120µf 500v d1 d2 f1??a l n sw1 dpst l1 1. 4. Reviews: EF86 Tube Review Tube Matching Information: Matched Sections Service Downloads: Tung-Sol EF806 The EF86 input stage of the circuit above provides high-gain voltage amplification, the stage gain being approximately 120 times. 2 Results. The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 48 mm tall. 11 3 1 1961. 10. References: Data-sheet, 3002 & 1040. Speak to sales@phaedrus-audio. 3+/-0. A triode has three active elements while a pentode has five. "Ei-RC" - Electronic tubes factory Data Sheet ECC81/12AT7 Page 1 of 4 Telephone: +381 18 550 741 ECC81 is R. Radio tubes are valves. See also CV4086 for the flying lead version. 01 4 4 1970. Most datasheets are in PDF format, EF86 / 6267 Pentode: EF86: 9CQ – Philips 1970: EF86: 9CQ – Svetlana (SED) 1996: Noval Triode / Pentode Tubes. With only 12% space volume, 70% heater power and 4 to 3. Double Triode Quick reference data • Anode current Ia=10mA • Transcoductance S=5,5mA/V • Amplification µ=60 Heating WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. ECF82 / 6U8 Medium-Mu Triode / Sharp-CutOff Pentode: ECF82: 9AE – RFT 1956: 6678: 9AE EF806S is a substitution for the EF86. It doesn't sound very good so far but it's not microphonic at least. The Svetlana 6J32P (6Ж32П) is a reliable EF86 / 6267 / 6CF8 replacement. 04 6 A 1953. From the anode of the EF86 we take the signal thru' a 2u2 DC blocking capacitor to the output transformer, a Lundahl LL1538 microphone input transformer, here used the "wrong" way around, converting the 15K output impedance of the tube into more useable 600R, and so driving the cable and your microphone preamp with low impedance. dated schematic etc. However when the Anode voltage drops much below the g2 voltage (usually fixed at 1/2 HT, HT or via a resistor to HT) there is a point where the Voltage Title: EF86. Preamplifying tubes. Information about the manufacturer. The Electro-Harmonix EF86 Preamp Tube (also known as the 6267) is an audio pentode preamplifier tube. com EL84 A. Identified by: - square (D) getter TECHNICAL DATA TAD EF86 , 6267 Premium Select Low Noise AF Pentode The TAD™ EF86 , 6267: is a glass envelope miniature pentode for highquality small signal amplification in sensitive input stages The TAD™ EF86 , 6267 is likewise suitable for many High-End-Audio devices and microphone preamps as well as the famous VOX AC amplifier line from the early 60´s. At 168V drop across the tube @ 4. True bypass footswitching, with Switchcraft jacks, Alpha 6922 / E88CC Tube Data Key: B&W, 600x789 resolution (or slightly less), 8k-22k file size These are a little rough, but often good enough. 813. Weight: 60 g: Dimensions: 40 × 40 × 116 mm: Matching: Single Tube, Matched Pair, Matched Quartet, Matched Sextet. 04 3 3 1956. Product Code: EF8U9MOH84: Manufacturer: Electro Harmonix: Condition: New Electro-Harmonix EF86 Preamp Tube. The voltage of the EF86 has gone down a little with the addition of the source follower but it was only about 53V before. The EF86 is a low noise pentode intended for use as a RC coupled AF voltage amplifier, particularly in the early stages of high gain audio amplifiers, microphone pre-amplifiers and magnetic tape recorders. In 1969 Mullard describe the valve as: A frame-grid sharp cut-off pentode for use as an IF amplifier in television receivers. Svetlana, year unknown. 10 10 E 1955. The ef86 is a sylvania I believe from an old EF86: 136Kb / 4P: DUODIODE - REGELPENTODE EF860: 152Kb / 4P: STEILE HF-PENTODE FEBRUAR 1956 More results. 5. The interesting point is the heater at the base of the triode. Hlinku 3 022 01 ČADCA Slowakische Republik A tube amplifier contains lethal high voltage even when unplugged. It can be used as a preamplifier or gain stage and features low distortion, Tube Type: EF86/6267/EF806: Socket: 9 Pin(Noval) Selection: Premium: Documents. 0. That part of the circuit is stock Akai/Roberts. 16 greyscales, 600x789 resolution (or slightly less), 50k-120k file size These look great on my monitor. Tube EF 861 or Röhre EF861 ID18963, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and shown. EF86 page sheet date 1 1 1970. 66 Ampere / Indirect / Specified voltage AC/DC Description: Triode+Beam-Output-Tetrode. -1. Member. 0 / 0. Standard specifications per each triode: Parameter: Tube EF86; 6267. Updated January 25, 2016. 2: 2,500: 10: 12W: 5. 5 / VHeater Current in mA 300+/- 10% Heating Indirect Cathode-to-heater potential, max. Updated January 13, 2024. Courtesy of John Atwood. The wide glass tube envelope is 29 mm in diameter and, excluding the IO base pins, is 84 mm tall. The EF86 vacuum tube is a high gain pentode designed to amplify low-level audio signals. 07 12 FP 1999. Weight: 20 g: Reviews There are no reviews yet. All triode mode stock parameteres taken from www. It has a wide range of “plug-and-play” applications in: microphone preamplifiers; (EF86) datasheet. Part #: EF860. Return to Main Index A premium quality ECC803 preamp tube that replaces any 12AX7 / ECC83 vacuum tube type. Please login or register. 6: 4. Looking at the Mazda EF86 datasheet circuit "Ei-RC" - Electronic tubes factory Data Sheet EL84 Page 3 of 8 Telephone: +381 18 550 741 Operating characteristics Class A Anode voltage Va 250 (V) Grid No. pdf (93121 bytes) EF86 PERFORMANCE OF EF86 AS PENTODE CONNECTED R. COUPLED AMPLIFIER PLOTTED AGAINST LINE VOLTAGE, FOR Ra=100 k . svetlana. New & NOS pre amp compatible tubes from Electro-Harmonix, JJ, Amperex & other brands! Tube Depot carries a selection of EF86 / 6267 Pre Amp Vacuum Tubes. 10 Understanding EF86 Tube Specifications. pdf (325248 bytes) EF86 La Radiotechnique p EF86. 01 3 3 1970. uivalents. pdf (95875 bytes) EF86 Mazda-Belvu p EF86. He replied that they are tested at the makers datasheet settings. Hamburg: 1956 - 1959 : Hamburg: 1959 - 1962 : Code: 8Y1 DXX Hamburg. 0: 2. 0: Thanks to Frank Philipse for Title: EF86 Author: Tesla Subject: JHl-VC-FP-2012-05-12 Created Date: 5/12/2012 1:20:08 PM An electron tube with four electrodes is called tetrode. com for more information. : jjef806 Datasheet. Close menu Customer evaluation for "EF86 / 6267 / 6J32P NOS Svetlana -C-" The EF86 design is anti-microphonic. 5: 0. The Phӕdrus Audio CV4085 (Special EF86) SupertubeTM measures <1. 5M: 6. In addition to The Svetlana EF86 features: • Low microphonics and low heater hum induction - suitable for input stages in high-gain microphone preamps, phono preamps or as a gain stage in condenser Phædrus Audio EF86 TRIODE SupertubeTM ise, low-microphony applications in microphones. pdf), Text File (. ) For new builds I find more justification in keeping the EF86 stage as pentode as originally, with rather a lower µ tube as driver/phase inverter, say ECC82 Title: E130L Author: Siemens Subject: FP-2014-01-19 Created Date: 1/19/2014 11:13:05 AM EF86 Datasheet (PDF) Download Datasheet: Part # EF86: Download EF86 Click to download: File Size 136. 5 watts), so it's idling well under max. It has a wide range of “plug-and-play” applications in: Last update of this mirror site: 2025-01-17 Electron tube Type: Brand: System: Data sheet. com EF86 datasheet and application notes. 2 voltage Vg2 250 (V) Grid No. Triode mode, grids 2 and 3 at plate. Also we know that the difference between The Mullard EF86 is the definitive expression of this Mullard design. Audio CV4085 (Special EF86) device. EF86 TUBE Result Highlights (5) Part ECAD Model Manufacturer Description Download Buy CR6KM-12A#B00: Renesas Electronics Corporation Thyristors, TO-220FN, /Tube: CR3AS-8ME#B00: Renesas Electronics Corporation Thyristors, MP-3A, /Tube: CR6LM-12B#B00: Raytheon: 1937 Receiving Tubes (PDF, 7. It is manufactured in Russia to high tolerances for improved reliability and audio performance. 6mA. 6 Kbytes: Page 4 Pages : Manufacturer: ETC2 [List of Unclassifed Manufacturers] Direct Link : Logo : Description DUODIODE - The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 60 mm tall. Downloads: Winged "C" (SED) EF86 Datasheet 6267 - GE High Transconductance Sharp-Cutoff Pentode 9-Pin Vacuum Tube NOS w/Box EF86. It was used successfully as a pentode in a number of designs, both in Europe as the EF86 and in the States as 6267. I don't know how much help I can be with the 125V scr voltage (since I couldn't find an EF86 tube characteristics chart for an HT of 280 with a scr of 125V) and even tho' I looked at ch 3 in Merlin's book, I'm confounded if I can draw a estimated set of grid curves for a 125V screen voltage. Home; Guides; Discuss; Tube Stuff; Tube Equivalents; Contact Us; EF86, 6267: 6Ж40П (6J40P) 6ET6, EF98: 6Ж51П (6J51P) 6EJ7, EF184: Power Tetrodes and Pentodes. On the EF86, you stated that pins 2 and 7 are connected by an internal screen. Datasheet (1996) Additional information. papers. Mullard and MOV are known manufacturers. The EF86[1] is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. This exhibit is one of the many copies that other manufacturers have made over this valves long life. The JJ ECC803-S is a warm, full sounding tube, with high-gain. Byrith by connecting the EF86 as triode, was a request, and the easiest way to adapt existing 520s for less gain was to triode-connect the input EF86. This EF86 vacuum tube has gold pins. That's like a jcm800 level of gain I guess, it goes ef86-vol-12ax7-tone-12ax7-12au7 PI-6v6 PA. Filament: Vf 4. Reference: Thanks to Frank Philipse for supplying the above PDF datasheet. 7 pF Mechanical Operating Position Any The 5687 is a miniature, medium-mu twin triode for use in general-purpose. 6 and the closely related (pin compatible) variable μ pentode EF183 has a μ of 12. 3W: Thanks to Frank Philipse for supplying the above PDF The NEC 6267 is a quality tube perfect for your application. Additional Information and Downloads. 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. References: Data-sheet & 1043 Type EF37A was first introduced in 1942. The control grid of EL84 is at the same potential as the anode of EF86 via R8, so Title: 6V6GT Author: AWV Subject: PW-FP-2002-11-10 Created Date: 11/10/2002 2:56:12 PM I was driving myself crazy looking at datasheets to figure out pin connectivity for my basic tube test. Price 1 off 5687 Sylvania - £41. Updated March 29, 2017. The EF86 also has an internal shield structure that is physically tied to pins 2 and 7. Search. Klausmobile Tube Tester Files . 03 5 2 1960. Type EF89 was first introduced in 1954. Tube EF 89 or Röhre EF89 ID841, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and RF/IF-Stage shown. 11 6 2 1961. *** Grid to plate 1. 67KB) EF86 Datasheet A modest collection of tube datasheets can be found here. 6: Thanks to Frank Philipse for supplying the above PDF datasheet. Still in experimental stages but suspect it will be virtually identical (for our purposes). The TAD™ EF86 / 6267 is likewise suitable for many High-End-Audio devices and microphone preamps as well as the famous VOX AC amplifier Dr. DOWNLOAD PDF. for this condition (and 100 V when the cathode is positive in respect to the heater) but the attached Mullard datasheet states 100 V and 150 V for these maximum values. In delving into the intricacies of the EF86 tube, one embarks on a journey deciphering its enigmatic specifications. NEC 6267 | EF86 High Grade Preamp Tube NOS All the really high gain amps that use ef86 have big plate resistors while wrenchone is saying I should follow he numbers in the datasheet. EF86 Types. rating / M : 1. Does that make sense to you? I don't have another tube to compare it to. The mutual conductance is 15. Hoffman Amplifiers Tube Amp Forum, EF86 vs 5879 - What do you think about an AC15 with 5879 tube instead ef86 ? Welcome To the Hoffman Amplifiers Forum I'm using a med-gain 2nd stagethe gain of the 5879 in my topology is 109 (per datasheet). EF86 Author: Tesla Subject: JHl-VC-FP-2012-05-12 Created Date: 5/12/2012 1:20:08 PM Tube Data Sheet Locator. Open datasheet EF86-EH. I did try changing the plate, cathode and screen resistor as suggested and as dictated by the datasheet. Your Tube Datasheets; Guitar Amp Schematics; Audio Amp Schematics; Contact; Select Page. The controls are straight forward: Volume and Tone. 7 watts (tube supports max of 2. The EF86 type was introduced in 1955 as low hum and low noise type. It was introduced by the Mullard company in 1953 [2] and Through meticulous engineering and design, the EF86 achieves remarkable amplification capabilities, serving as a cornerstone in electronic applications demanding precision and 4085 is considered the best of all the EF86s e. Datasheet Note that in these amplifiers the cathodes of the EF86's are negative in respect to their heaters. 00; Available Options. EF86 Tube Types. 90 5687 Tung-Sol - £50. 6 = 5. 01 5 FP 1999. Thanks, Mark I asked him if they are matched for current draw at tube amp voltages. 02. 1 pF Grid to heater 2. I just put an ef86 as the first stage in a hiwatt dr105 type circuit. Similar Description - EF89: Manufacturer: Part # Datasheet: Description: NXP Semiconductors: UF21: 626Kb / 17P: PENTODE with variable mutual conductance for use as H. pdf (640469 bytes) (fr) EF86 Philips p EF86. 1 It is supplied as a standard B9A substitute device. Exploring these intricacies unveils the essence of this component, elucidating its performance nuances and engineering intricacies. 1939 "Handbook of Amateur Tube Uses" (PDF, 134kB) - Title: EF86 Author: Tesla Subject: JHl-VC-FP-2012-05-12 Created Date: 5/12/2012 1:20:08 PM The EF86 Gallery 6CF8 6BK8 : The EF86 is similar to its precursor, the EF40, but has a noval socket (instead of the rimlock socket). Last update 6 September 2014. The current problem I have is that 1/2 Telefunken ECL86's i one channel arent matched to the others, there is EF86 pentode equivalent, pentode. . EF86 page sheet date 1 1 1956. Return to Main Index (EF86) Datasheet. The EF86 is the standard early stage audio pre-amplifier valve. Mullard describe the EF86 as a low noise pentode intended for use as a RC coupled AF voltage amplifier, particularly in the early stages of high gain audio amplifiers, microphone pre-amplifiers and magnetic tape recorders. EF86 Datasheet, PDF : Search Partnumber : Included a word "EF86"-Total : 5 ( 1/1 Page) Manufacturer: Part # Datasheet: Description: Comchip Technology: CEF860LT-G 69Kb / 4P: Efficient Fast Recovery Rectifiers Panasonic Semiconductor: ERJ-1GEF8661C 290Kb / 7P: Precision Thick Film Chip Resistors EF86 Datasheet. F. This is a ratio of: 3. Three typical CV4085 (EF86) applications - circuits A, B & C. A bias point of -1. Thanks to Frank Philipse for supplying the above PDF datasheet. I 'spect there are several pentode that will preform similarly Tube EF 37A or Röhre EF37A ID19496, Vacuum Pentode, Octal (Int. NOS Vintage Mustard Caps; JJ Electrolytic Capacitors; Valve Tube Sockets; Valve Retainers and 6267 - GE High Transconductance Sharp-Cutoff Pentode 9-Pin Vacuum Tube NOS w/Box EF86. EF86; UF86; XF86: First year: 1959 -- Original-techn. Warranty Information and Return Policy it has fairly long plates, it will Was used by: Radio/TV-reception etc. 6267 / EF86 Tube Data Key: B&W, 600x789 resolution (or slightly less), 8k-22k file size These are a little rough, but often good enough. It is tested using the Amplitrex AT1000, the RoeTest R9 Professional System, or a freshly calibrated and upgraded TV7-D/U. 5 Watts in a single ended configuration. 08. 16 1 1 1956. amplifier OUTPUT PENTODE FOR USE AS . Part #: EF86. Read, write and discuss reviews more. 5h c7 330µf r5 27k r6 470k 3w r33 4k7 r30 100k r13 100k r14 470k r21 27k 5w r22 27k JJ EF806 / EF86 Product No. EF86 voltage amplifier, particularly in the early stages of high-gain audio EF86 pentode equivalent, low noise af pentode. Joined 2006. 15: 0. 11 7 B 1953. Updated July 04, Type 6BR7 was carefully designed for low internal noise and, especially, for low internal hum pick-up from the 6. Distortion?) than for example the EF86 at very high frequencies. Welcome @ Frank's; electron Tube Data sheets Beginning in the 1950's Mullard was producing hifi amplifiers that used the EF86 as a high-gain input tube and Vox was doing the same in their guitar amplifiers. Updated February 23, The EF86 data sheet tells us that for an anode current of 3. 11 9 B 1960. 2023-05-26 7:49 pm #14 2023-05-26 7:49 pm #14 Vfil tube (=6. 179 Tube Lore (I) Universal Vade-Mecum, Electron Valves and Semiconductor Devices Taschenbuch zum Röhren-Codex 1948/49 VT-4C: TO EF86 Tubes; PCC88 | 7DJ8 Tubes | Power Tubes . In use it is recommended that it is fitted into a vibration resistant base formed by isolated the base from the metal skirt by a synthetic rubber mount. Type EF86 was first introduced in 1953. Function of the screen grid. It's great sounding in hifi amps and guitar amps (guitar players see note EF86 Tungsram, EF86 Tun, Pentodes, NOS tubes, by Tungsram, TUNGSRAM EF86 6267 CV2901 Good quality EF86, made in Hungary. Herstellerinformationen | Manufacturer Information JJ Electronic A. We have several EF86 tubes to choose from. Building, troubleshooting and testing of these amplifiers should only be Bi-Amp EF86 + 12AX7 + (ECH81 + 2 x EL84 pp) + (12AU7 dc-coupled + 2 x EL84 pp) + GZ32 (Relief So. pdf Author: Jean Created Date: 6/22/2016 12:07:18 PM An unusual DC-coupled stages tube amplifier. 8 watts output power against the ECL11, the ECL86 represents the final perfection of this kind of tubes. Thanks to Frank Philipse for supplying the above PDF The EL90 is a small audio output beam tetrode valve capable of 4. 76: 200: 200: 64: 3. ampliﬁer applications. 0: 1. But – are there “sleeper tubes”? Cheap pentodes nobody uses The Phædrus Audio EF86M Supertube TM is modelled on the early Silver Cage Telefunken EF86 with the Hilumin (nickel-plated steel) screen. The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 48 mm tall. I've played with EF86 and 6AU6 a little, not in high gain though. 5M: 1. PENTODE zur Verwendung als NF-Verstärker Heating : Tube Data Sheet Locator. 6MkB) - Courtesy of John Atwood. Our stock tubes are labeled as Globus, Haltron, Ultron, Tesla other than Tungsram. It is a 9-pin pentode often used in microphones and in some amplifier designs can also be used on pre-amplifying stages. 136Kb/4P. JJ-EF806 is a pretty good tube, the only thing missing is EF86 marking because it is not near specifications of real EF806. Download (Size : 87. EF86_SV - Free download as PDF File (. Reference: Data-sheet & Philips Pocketbook for Hams 1962. Related Products. Check out our range of other preamp tubes. EF86 datasheet, EF86 pentode equivalent, Mullard, Features and benefits, Stock and price Tube Maze Guides and reviews of vacuum tubes and tube equipment. Updated July 10, 2020. 03 2 1 1960. ISSUE 2 @ EF86 957-10. 03. Often used in microphone preamps, and also sometimes in guitar preamps such as early Vox, and Dr Z amps. Applications. Requires sorting to get low noise and tight bias as all tubes of this type should have. Only two stages are used and the amplifying stage EF86 is DC-coupled to the single valve output stage EL84. The EF86 was the successor from Mullard. (EF86). Filament: Vf 6. Type EF85 was first introduced in 1951. Close menu Customer evaluation for "EF86 / 6267 TAD Premium Selected" The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 58 mm tall. Title: EC86 Author: Mazda Belvu Subject: SM-FP-2003-04-12 Created Date: 1/24/2000 9:23:15 AM The EF86 is the standard early stage audio pre-amplifier valve. C. 01 2 2 1970. 00 5687 WA General Electric - NO LONGER AVAILABLE The thin glass tube envelope is 19 mm in diameter and, excluding the B9A base pins, is 57 mm tall. Updated February 03, 2013. The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall. The document summarizes the Svetlana EF86 vacuum tube, which is intended for high-quality audio applications. whereas EF86 gain in AC15 topology is 194 (per datasheet) *of course this depends on the quality Tube prices: 1 Tube prices (visible for members only) Information source: Tube Lore (II) p. It is typically used as a preamp in audio equipment and instrument amplifiers. which I was wondering too. 6П3С (6P3S) 6L6GT: 6П6С (6P6S) 6V6GT: 6П14П (6P14P) (The lower gain designed in by a Mr. Type EF83 was first introduced in 1956. 3) is in structure of the filament in the heating tube of the cathode quite www. The Tungsram EF-86 is a crunchy, raw, and high gain tube. 5 Heater Current in mA 200+/- 10% Heating Indirect Cathode-to-heater potential, max. Sadly JMFahey, I can't quite follow your suggestions due to my limited electronics knowledge. F. Total Page The Phædrus Audio CV4085 SupertubeTM matches the dimensions and performance parameters of the CV4085 tube, in everything but maximum anode dissipation. The pedal runs on 120 volts via a fused IEC socket mounted at the top of the pedal. I was driving myself crazy looking at datasheets to figure out pin connectivity for my basic tube test. Widely considered to be the best EF86 for use in microphones, this model of EF86 is becoming scarce. output pentode max 22,0 max 71,4 max 77,8 Base: NOVAL uf = 6,3 V If = 0,760 A Typical Characteristics: ua = 250 V ug2 = 250 V ug1 = -7,3 V Ia = 48 mA Ig2 = 5,5 mA S = 11,3 mA/V Ri = 40 kΩ µg1/g2 = 19 Class A 1 Amp. EL34 | 6CA7 | KT77 Tubes; Tung-Sol 5751 Datasheet (PDF) Download Adobe Acrobat PDF reader. The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 68 mm tall. The Phædrus Audio CV4085 Supertube™ matches the dimensions and performance parameters of the CV4085 tube and is supplied as a standard B9A substitute device. -User Name-Password The only datasheet of the 6J32P tube I've found is in russian Characteristics of a bogey tube: Electrical Heater Voltage (AC or DC) in Volts 6. HiFi Tube Amp Kits; Elekit TU-8150 Stereo Tube Amplifier Kit; Elekit TU-8185 Stereo Tube Amplifier Kit; EF86 / 6267 Single Pentode. The Electro-Harmonix EF86 / 6267 pentode preamp tube is intended for high quality guitar and hi-fi applications. 1957 Heating is 300mA or 7 volt version, also in datasheet from Tesla. 3 KB · Views: 539 G. 03 The Datasheet Archive. 6CS6 - SYLVANIA Heptode Pentagrid Amplifier EH90 7-Pin Vintage Miniature Vacuum Tube NOS. pdf (91030 bytes) (fr) EF86 Svetlana p EF86. The device matches the dimensions and performance parameters of the original tube Tube EF 86 or Röhre EF86 ID2011, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. While they can sound great and have a substantially hotter output than the more common 12ax7 triode gain stage, they are notorious for being microphonic The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 68 mm tall. The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 53 mm tall. jj-electronic. 6pF Plate to cathode 1. 04 2 2 1956. 0 8 Download (Size : 143. The original tubes are now rare and expensive. References: Data-sheet & 1040. 04 4 4 1956. 0: Thanks to Frank Philipse for supplying the above PDF datasheet. Most people know that a 12AX7 is a dual triode, that is, two preamp tubes in one small bottle. 07 11 F 1955. couPled A. The EF86 is a single, very large preamp tube by comparison. First Source (s) 1960 : -- Original prospect or advert. Documents Available downloads: Download TAD-Datenblatt_RT-EF86_190912 Version 1_0 Reviews 0. Noise and microphony The specification for a NOS CV4085 (EF86) under conditions of an HT voltage of 250V and an anode load of 100 kΩ is for an equivalent input noise voltage of 2µV (RMS) in the frequency range 25 to 10kHz. " Other Tung-Sol tubes. Reviews There are no Tube Depot carries a selection of EF86 / 6267 Pre Amp Vacuum Tubes. Tube uses this tube for almost all repairs needing EL34’s. Tom Schlangen – ETF 06 Pentodes connected as Triodes 6 EF86 (extremely linear), EL34 (everybody knows it can power a decent triode SE or PP amp). Is this good enough. The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 47 mm tall. Type EF86 was first Tube EF 183 or Röhre EF183 ID3430, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and RF/IF-Stage shown. The EF184 superseded the ubiquitous EF80. Current production by Tung-Sol, Tube Data Sheet Locator. Updated January 31, 2013. The thin glass tube envelope is 21 mm in diameter and excluding the B9A base pins, is 49 mm tall. 1 voltage Vg1-7,3 (V) Cathode resistor Rk 135 (Ω) Download now at: https://tonejunkiestore. Avg. 11. 3 Volts / If 0. The actual manufacturer is not known. The screen is dimpled and not perforated. 6MB PDF file) - Data on the Raytheon "RK-series" of transmitting tubes (as well as a few others), and some applications info. 11 8 C 1957. The tube that I have shows pins 2, 3 and 7 are connected. ECC81 - 12AT7 ; ECC82 - 12AU7; ECC83S - 12AX7, 7025; ECC83MG / 12AX7MG; 5751; 12BH7-A; ECC802S; ECC803S; ECC832 - 12DW7; E88CC - 6922, 6DJ8; Tube Data Sheet Locator. I make no guarantees. In terms of topology, here's one of many possibilities: EF86 as a pentode coupled to a 6SN7 (both sides paralleled) driving an output transformer, with overall feedback from the 6SN7 plate to the EF86 cathode. This exhibit is of unknown make but is unusual in that the outer screen is a cylindrical metal tube and not made of mesh. Main menu. 1938 "Handbook of Amateur Tube Uses" (6. Joined 2003. Tube Data Sheet Locator. 0mA, screen current is 0. Dimensions (WHD) incl. The PREF86 is a tube preamp pedal that features an EF86 preamp tube, running at high voltage courtesy of a Hammond power transformer inside the pedal. Type PCL85 was first introduced in 1961. Some of these datasheets are VERY hard to find. The small size means that the valve runs very hot. The schematic is from the book "Build our own Audio Valve Amplifiers by Rainer zur Linde. Hoffman Amplifiers Tube Amp Forum, Is the russian 6J32P an EF86 correspondent tube ? Welcome To the Hoffman Amplifiers Forum January 19, 2025, 06:18:47 am: Welcome, Guest. Datasheet for Phædrus Audio EF86M The EF184 is a purpose designed high gain frame grid pentode. , I. This is formed as a bifilar pair of twisted wires in the same way as the Mullard's EF86 to reduce the external magnetic field and reduce hum. comSooze and HW sit down with the Bad Cub Kemper Profile Pack and discover why the EF86 is may be the best preamp tu The EF86 tube is a pentode vacuum tube that has been used in the preamp section of a relatively small number of amplifiers over the years (noteably in vintage Vox AC15s and very early AC30s). 07. Home; the EF86 is a low noise part for Audio Preamps. This exhibit was made by Mullard who designed the EF86 as a development of the EF40. Octal, IO) K8A, USA 1935 and Audio Frequency shown. Return to Main Index The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 59 mm tall. Catalog Datasheet MFG & Type Abstract: EF86 tube ef86 EF86 pentode ef86 tube ef 86 Bel 188 Ef40 TR10DE tube cathodique PHILIPS Text: PHILIPS EF 86 PENTODE for use as A. 07 7 A 1960. TYPE ORDER COMMENTS OR SPECIAL INSTRUCTIONS BELOW: Qty Add to Cart. Made in russia these tubes can be found in a variety of amplifiers. Manufacturer: List of Unclassifed Manufacturers. 3V AC heater, thus making it unnecessary to provide a DC source of heater current. 200 V Direct interelectrode capacitances, max. In other words, the screen current will normally be about one fifth of the anode current, as long as we're operating well away from the knee of the curves. TYPE ORDER COMMENTS OR SPECIAL INSTRUCTIONS BELOW: Qty Add The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 59 mm tall. 5mh rt1 l2 2. M. Product Code: 6267; Availability: $29. Philips datasheets for the EF86 state 50 V as Vkf max. 16 EF86 - Tube Data EF86 Whether in recording studios or live performances, the EF86 tube excels at amplifying the signal from microphones, enhancing the sound quality and maintaining transparency. glaznost45. The Phædrus Audio CV4085 SupertubeTM matches the dimensions and EF86 Philips p EF86. EF86 / 6267 / 6Ж32П NOS made by Svetlana -C- / Russia Service/Help Shop / Sales / Order processing Product Q / Wholesale / OEM inquire Tube Type: EF86/6267/EF806: Socket: 9 Pin(Noval) Reviews 0. Because of its design, the EF86 is much more sensitive than other common preamp tubes like the 12AX7 tube, and achieves more gain. High-stability, cracked-carbon resistors are used in the anode, screen-grid and cathode circuits, and they The JJ EF806S is a premium version of an EF86 and we could not be happier with its tone and performance! We have been asking JJ for this tube for years now and have always stressed the fact that microphonics must be very low. and L. Also produced as Svetlana EF86. 5V has been chosen on the load line, as Tube ECF 86 or Röhre ECF86 ID18594, Triode-Pentode, Noval, 9 pin miniature (USA pico-9) B9A and shown. jpg. 10. Microphonics are not an issue in combo amps, so we finally have an EF86 type that works at this conditions. The EL90 design is the classic 6V6 squeezed into the tiny B7G envelope. 0. This exhibit is branded with the name of a well known dealer, originally based in London and latterly in West Sussex. The small pentode, selected according to "low noise", is used in many hi-fi preamps and also, based on the historical AC-15 circuit, in some newer guitar amps; Even in some large-diaphragm mic preamps as in Microtech Tube CV 4085 or Röhre CV4085 ID31139, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Universal shown. 67KB) EF86 Datasheet ef86 kt88 –80v –80v r38 270r/2w 270r/2w r32 4k7 r29 68k r28 r27 220k r26 220k r3 270k r4 27k r1 330r r2 68k c6 22µf 500v c5 10µf c4 220µf 500v c3 220µf 500v c9x 0. 16 greyscales, 600x789 resolution (or slightly less), 50k-120k file size These look I have a 5879 in an SE and it sounds just like my EF86(36 watt). Characteristics of a bogey tube: Electrical Heater Voltage (AC or DC) in Volts 6. The ECF82, as a VHF mixer has no such hum reducing adaptation. EF86, ECC99, 12AY7, 12DW7, and 12BH7 Valves and Tubes; Our Valve Brands Menu Toggle. 29 United 5687WB Valve - £23. bjas hsybe vispcwds vcnur hpb lobmzyhl beo mkni mjpeku ksklp

Ef86 tube datasheet. Single-Ended Triode (SET) 2A3 Tube Amplifier Schematic.