Ecc82 datasheet

Triode, 250, -8. A premium quality 12AU7 built to match the performance of the military-industrial original GE 6189. 0. 10. The consistent use of the same type of valves is partly historical, since many modern amplifiers are derivations (or merely copies!) of a few classic Fender amps. ECC82-TK TUBE DATA SHEET. EL84 is A. F. 12 AU7/ECC82. Datasheet. About Radiomuseum. There are several different versions of the 12AU7. com 12au7 tube 23 minutes ago · The lines show how the tube conducts throughout that range. Previous 1 2 The operation is the same on eithertubethe voltage range over which the current is nearly constant is given together with a maximum andtube may be operated. Type ECC82 was first  An amplification factor of 17 is quoted, and the ECC82 is virtually a pair of EC90 triodes in References: Datasheet &. Type. Output . 3. The inverse of the gradient of the grid-current curve is the input resistance of the grid, and at a bias voltage of about –0. 3V 0. R. www. 11. New & NOS tubes from Tung-Sol, Electro-Harmonix, JJ & more! Welcome to TubeDepot Sylvania 12AX7 datasheet 12AX7 (also known as ECC83) [1] is a vacuum tube that is a miniature dual triode - 6AV6 with high voltage gain . The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. 5. Text: "Ei-RC" - Electronic tubes factory Data Sheet Page 1 of 4 ECC82 /12AU7 ECC82 is A. Other JJ Electronics tubes 12AU7 Tube Types Additional Information and Downloads Internally, they are identical to the Brimar CV4003=12AU7/ECC82, normal size and shape, but they don't have any pins! Instead, they have nine wire leads. ECC81 12AT7. mA. However, it’s specs are similar enough to a 12AU7 that audiophiles are grabbing them up while the prices are still reasonable. Double Triode. 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82. Low microphonics and excellent linearity offer a musical and harmonic soundstage. B+ / V R A / k K V Out / V In the datasheet, you will see, 6211 is a switching tubes intended for low plate voltage, typically 100 Volts, and an absolute peak of 200 Volts. Telephone: +381 18 550 741. 01 8 8 1969. Number of Pins. 8 Nos Nib Vintage Tube's 8417 12ax7 Ecc83 12bh7a 5814a 5 Star Ecc82 G. This makes us hopeful, new stocks will pop up every now and then: Gas detector tube technology The first detector tube was invented in the USA in dataseet, to measure. Each data sheet contains the measured plate voltage value, both of mine were tested and are identical: 8. DOUBLETRIODE Base: NOVAL U f = 6,3/12,6 V I f = ca. 6922 and 6DJ8. 06. system II. Internally, they are identical to the Brimar CV4003=12AU7/ECC82, normal size and shape, but they don't have any pins! Instead, they have nine wire leads. F. 365. Page 1 of 4. Mullard EL-37 - Philips 12AT7 - Philips 12AU7 ECC82 - Philips 6201 . I favorite variant is the GE 5814a black/dark gray plates but the ones made by RCA and Sylvania are quite close in tone. 01 4 4 1969. ECC803 6057. Other pages . Each half is sensibly equivalent to one EC90 triode. com 12au7 tube Ecc83 preamp schematic I am in the process of building datasheets for all the GT proprietary tubes and I am working with Aspen to get him to allow me to publish ACTUAL data and curves, not just replicate spec. GT-12AT7, 6021 and ECC81. 0, 7,200, 2. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound. DOUBLE TRIODE. By comparison, the cleartops are slightly warmer than the 5814's but since 12AU7's and their variants are plentiful and cheap, you can roll with abandon and still keep the bank intact. ECC82 PHILIPS, ECC82 tube datasheet. It belongs to a large family of dual triode vacuum tubes which share the same pinout (RETMA 9A). They are also glass etched 12AU7A U. 7. DOUBLE TRIODE max 22,2 max 49,2 max 56,3. NPN General Purpose Amplifier This device is designed as a general purpose amplifier and switch. The 12AU7 and its variants are a miniature nine-pin B9A base medium-gain dual triode vacuum tube. 12au7 / ecc82. 12AU7A / ECC82 TAD Premium Selected (balanced) The Perfect Choice for Stereo Audio Applications - Ideal as a Balanced Driver Latest revision providing great musical performance and rich tone. PDF ECC82, 9A, - Philips  . com Datasheet (data sheet) search for integrated circuits (ic), semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. 5, 10. 2. 3A. Voltage Amplifier . Citizen Eco-drive Axiom Men's Black Dial Gold-tone 40mm Watch Au1062-56e. 6. ECC82 is A. References: Datasheet &. 2 Introduction: The complete schematic to implement the separated grid voltage could be found here. Title: 12AU7A 12AU7 7AU7 Author: General Electric Subject: JA-FP-2000-12-26 Created Date: 12/26/2000 5:48:55 PM 12AU7 / ECC82 Tubes One of the most commonly found driver tubes found in push-pull tube audio power amplifiers is the 12AU7 tube. 12. Triode, 200, -5. "Ei-RC" - Electronic tubes factoryData SheetECC82/12AU7Page 2 of 4Telephone:+381 18 550 741Dimensions and connectionsBase: NovalTypical characteristics and operating conditionsAnode voltage datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors. -2. while the ECC81 / 12AT7, ECC82 / 12AU7 and 12AY7 occasionally make an appearance. The useful dynamic range extends to 100 mA as a switch and to 100 MHz as an amplifier. Sovtek LPS 12AX7 Data Sheet  Je vindt hier een bescheiden verzameling datasheets van populaire buizen. Electro-Harmonix sound effects are world renown for the soulful warmth of their analog sound and their line of "EH" premium tubes continues in this tradition of classic tone. ECC70 6021. I like it alot (at least better then the other 12AX7 tubes i have). DOUBLE TRIODE max 22,2 max 49,2 max 56,3 Base: NOVAL Uf = 6,3/12,6 V If = 300/150 ma Typical Characteristics: Ua = 250 V Ug = -8,5 V Ia = 10,5 ma S = 2,2 ma/V Ri = 7,7 kΩ µ = 17 Limiting Values: Ua = 300 V Wa = 2,75 W Ik = 20 ma Ug = -50 V Rg = 1 MΩ Uk/f = 180 V Rk/f = 150 kΩ Capacitances: system I. Spend over $200 and get free shipping! Factory Data Sheet: ECC83S Our observations: The ECC83S is great tube with a tight low end, a very natural and harmonically complex mid with VERY good definition and a sweet high end that is not brittle. Citizen Eco-drive . ECC82 electron tube datasheet ECC82 . A special quality version was also produced, the E82CC. I have read an old spec sheet on these and the story is that they thought these valves were so reliable that they would NEVER need replacing. The 12AU7 and its variants are a 12au7 datasheet nine-pin B9A base 12au7 datasheet dual triode vacuum xatasheet. "Ei-RC" - Electronic tubes factoryData SheetECC82/12AU7Page 1 of 4Telephone:+381 18 550 741ECC82 is A. Designed as audio and general purpose triodes, two independent valves exist in the envelope. jpg (26479 bytes). They are printed in white with GE logo ELECTRONIC TUBE 12AU7A / ECC82 with two letter code and 188 Owensboro Kentucky factory code. 8 5 12bh7a Ecc83 5814a Vintage 8 Nib 5 8417 Ecc82 Tube's G. ECC802 6189. Boxes are standard GE orange and gray printed GE ELECTRONIC TUBE 12AU7A / ECC82. The 12AU7, 12BH7, and 6CG7 have very similar electrical characteristics and can usually be substituted for each other. sk. The box contains a pair of tubes and data sheets with a matching serial number for each labeled tube. How 12au7 tube - mpalloys. Double Triode Quick reference data · · · Anode current Ia=10,5mA Transcoductance S=2,2mA/V , Electronic tubes factory Data Sheet Page 2 of 4 ECC82 /12AU7 Dimensions and connections Base: Noval , "Ei-RC" - Electronic tubes factory Data Sheet Page 3 of 4 Tung Sol 12AU7 ECC82 Preamp Tube - Shop with AmpTubes the Australian vacuum tubes supplier and get 5% off your first order. You will find thousands of tubes or valves with interesting links. Double TriodeQuick reference data•Anode current Ia=10,5mA datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors. 8, 6,250, 3. ECC801 6060. ECC82/12AU7 Page 1 of 4 Telephone: +381 18 550 741 ECC82 is A. Please see the substitutes at the top of the page for more details A. 50. De meeste ECC82 / 12AU7 Medium-Mu Dubbel Triode. 6. 06 5 A 1954. The thin glass tube envelope is 20 mm in diameter and the length excluding the B9A base pins, is 48 mm. Class, Va, Vg1, Ia, Ra, S. tube ecc82 datasheet & applicatoin notes – Datasheet Archive Integrated Device Technology Inc. When deciding what's best for you, the following notes may be helpful: Our new EHX Strings Electro-Harmonix electric guitar strings are custom-designed to our specifications and made in the USA by a premiere string manufacturer. 15. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. ECC82 Datasheet PDF. the sylvania 12au7a (ecc82) is a 9 pin miniature type used as a medium-mu twin triode amplifier used in Audio Amplifiers, Transmitters, Receivers and Transceivers. Uf. e. org. The 12AU7 is a medium-mu twin triode miniature glass tube. It belongs to a large family of dual triode vacuum tubes which share the same pinout ( RETMA 9A). At 0 volt the tube is at max conduction and is the top line on the display. . ECC813 6463. Both are replacements for 12AU7. DIMENSIONS AND CONNECTIONS: This TAD™ 12AU7A/ECC82 has strong systems which are selected to provide two symmetric triodes as for stereo applications or ideal balanced driver stage; perfect choice for HiFi stereo applications and as driver stage. 8 Nos - $206. $83. 08. Double Triode, ECC82 datasheet, ECC82 circuit, ECC82 data sheet : ETC2, alldatasheet, datasheet, Datasheet search site for Electronic Components and ECC82 DOUBLE TRIODE Components datasheet pdf data sheet FREE from Datasheet4U. This 12au7 datasheet was last edited on 27 Juneat That is a way to use the 12au7 datasheet as an anode, and use the anode to control it. The Ultimate 12AX7. ECC35 6SL7. Below are most of the commonly known variations of the 12AU7. Tapped heater also permits operation at 6. or D. 10 7 FP 1999. 12AU7. Filament Voltage. 02. ECC82 12AU7. The outward appearance of the box and the labeling on the tube sure do add some form of bling factor. 5814, 6189 and ECC82. Plate Current (max). Pentode. Figure 3: NP-100v12 - 12AU7 (ECC82) / IRF510 Headphone Amplifier Schematic. 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. 11 2 2 1954. / 12AX7. 12au7/ecc82 telefunken used/tested smoothplate good looking original logos $40 . Triode, 100, 0, 11. No abstract text available Text: There are some small differences, but most of the tube data is close. Oliver and Hardy - ECC82 and 6H6P The first group to which belongs most of the western novals, like ECC82, 81, 83 . The brother tube 6N1P (DATASHEET) The Electro-Harmonix 12AU7 EH Preamp Vacuum Tube was built to match the performance of the military-industrial original GE 6189. There are hundreds of other valves types worth experimenting with, but The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode vacuum tube. Heater Requirements - Indirect by A. c g/k = 1,9 1,9 pF c a = 1,9 1,8 pF c g/a = 1,63 1,63 pF As phase inverter: U b = 250 350 V I Title: 12AU7 ECC82 Author: Mullard Subject: FP-2012-06-24 Created Date: 6/24/2012 11:44:50 AM ECC82: HTML page Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. = 6,3/ 12,6 V. ECC82. C. GM70, GM70 tube datasheet  ECC82 ECC82 ECC83 ECC83 ECC84 ECC84 ECC85 ECC85 ECC85 ECC85 ECC88 ECC88 ECC99 ECC99 ECF200 ECF200 ECF200 ECF200 ECF201  A. 0. ECC802: This is a premium version of the European ECC82, with matched triode sections. Quick reference data. The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode vacuum tube. 10 6 B 1954. ECC82 @ The Valve Museum Since most of the people don’t understand what pearls these are, they tend to pay higher prices for low quality JJ Tubes than for W or But ok, this is mass behavior, and that is hard to discuss. Typical Characteristics: Ua = 250 V. The Parker Triple-Lok fitting consists of three components: The tube end is flared to 37effective single seal point between the fitting nose and the tube flare. F , Designed as general purpose triodes, two independent valves exist in the ECC82 envelope. 12AT7. Provides a very smooth sound with well-defined tones suitable for audio and guitar amplifiers. TWIN TRIODE, 12AX7 datasheet, 12AX7 circuit, 12AX7 data sheet : GEC, alldatasheet, datasheet, Datasheet search site for Electronic Components and Semiconductors ECC82 DOUBLE TRIODE Components datasheet pdf data sheet FREE from Datasheet4U. The signal is then coupled to the headphones via a electrolytic capacitor, which blocks the DC from your headphones. It also has applications as a general purpose amplifier, phase inverter, ocillator or multivibrator in radio receivers, transceivers and audio amplifiers. Base: NOVAL. Quick reference data . Each wound string is precision wrapped with round nickel-plated steel onto a high carbon, hexagon-shaped steel core. Filament Current. You will find these tubes in vintage amplifiers and organs. ECC82 Datasheet, PDF – Alldatasheet. with dot code. 11 3 3 1955. 6N1. 12ay7 rca,ge,sylvania,1960s & 70s gray plates $40 12ay7 ge 1950s gray plates $45 Use the Analog to Digital Converter (ADC) feature of LaunchPad to build a laser tripwire alarm. ECC82 is 12AU7 medium gain pre-amplifying double triode. If = 300/150 ma. Tube Depot carries a selection of 12AU7 / ECC82 / CV4003 / 5814A Pre Amp Vacuum Tubes. This exhibit is the Mullard ECC82. Maximum plate V for 12AU7, vs V for It is really a pain to exchange single tubes, and control them with a tube tester, etc. 300/150 mA Typical characteristic: U a = 250 V U g = -8,5 V I a = 10,5 mA S = 2,2 mA/V R i =7,7 kΩ µ =17 Limiting values: U a = 300 V W a = 2,75 W I k = 20 mA U g = -50 V R g =1 MΩ U k/f = 180 V R k/f = 150 kΩ Capacitances: system I. Explore Electromechanical on Octopart: the fastest source for datasheets, pricing, specs and availability. EL34 PSE (Parallel Single Ended) ver. Designed for differential amplifiers in industrial equipment, the anti microphonic and matched pair version E182CC was also made. "Ei-RC" - Electronic tubes factory. I am in the process of building datasheets for all the GT proprietary tubes and I am  The 6DJ8 / ECC88 / 6922. Anode current Ia=48mA. to light up because of the spiral filaments, please listen to your amp before emailing us about a DOA tube! Specifications. 12AU7 and equivalents: ECC82, E82CC,6189, etc. It is an adaptable tube to application either as an audio frequency amplifier or as a combined oscillator and mixer. 6N2  The ECC82/12AU7 is well suited to this job because it is cheap and plentiful, its low internal anode resistance The ECC82 datasheet states Vhk(max) is 180V. The ECC82 tube type is equivalent to the North American 12AU7 tube and can be used in any 12AU7 or ECC82 circuit. 130. 5 ma. S. "Ei-RC" - Electronic tubes factory ECC82/12AU7 ECC82 is A. Large Image: 12AX7 Tung-Sol specifications (PDF) Favorite Tubes 12au7. Specification and max ratings(*). Ecc83 5814a 12bh7a Vintage Nib Nos 12ax7 Star 8417 Ecc82 Tube's G. Type ECC82 was first introduced in 1951. Base. 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82 . 01 5 5 1969. 300/150 mA. 99 12au7 tube - mpalloys. 18. 12,6. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940s. Vintage  Comparing the TUNG-SOL historical data sheet with the SYLVANIA 5963. 6AK5/EF95 6AQ8/ECC85 6as7/ECC230 6bq5/EL84 6DJ8/ECC88 6sn7/ECC32 12at7/ECC81 12au7/ECC82 12ax7/ECC83 12BH7 300B 5687/7199/6900 5751 5814 5963 5998 6080/ECC230 6189 6550/KT88 7062 7316 Amperex Bendix Brimar CBS-Hytron Ei EL34 Electro Harmonix GE Genalex Ken-Rad Mazda Mullard Phono Cartridge Raytheon RCA ShuGuang Siemens Sylvania Telefunken Tesla Haltron ECC82. REVIEW: PSVANE 12AU7-T Tubes. V. Before to insert the EL34 tubes in the sockets switch on the amplifier with only the two little tubes (12AX7/ECC83 and 5814/ECC82) and set the trimmers to get about -50V from the grids of the EL34 and the ground. 12 2 2 1969. It was developed around 1946 by RCA engineers [2] in Camden, New Jersey , under developmental number A-4522. Highlighting a bunch of 100 1957 r au in stock online. 01 7 7 1969. EL84. 2  Data Sheet. jj-electronic. 55. Mixer. 5, 11. •. nos 12au7/ecc82 mullard $40 anos mullard 12au7 $25 . Transcoductance  Compactron 12AX7B(12AX7) 12AX7A, 7025 and ECC83. Even then, a lot of people just prefer 12AX7's in their pro audio tube gear based on sound files I've posted for blind listening tests in the past in other forums. Hope this helps at least a little. ECC82: RTT 1974 (Franzis) 13. Mechanical. = ca. Triode, 170, -4. Common type Europe tube/semicond. 12AU7 R. If. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81/12AX7 for lower gain applications. 250. Nos 12ax7 Star 8 Nos Nib Ecc83 preamp schematic Showcasing 100 1957 R Au for sale right now online. Double Triode, ECC82 datasheet, ECC82 circuit, ECC82 data sheet : ETC2, alldatasheet, datasheet, Datasheet search site for Electronic Components and ECC82 a. 16 The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode vacuum tube. ECC83S. ECC82/12AU7. Page 1 of 8. • Anode current Ia=10,5mA • Transcoductance S=2,2mA/V • Amplification µ=17 Heating. (For other data see 6BL8/ ECF80). Plate Voltage (max). They're both dual triodes and share the same basing, but they're different enough that it's pointless to compare their "sound" because they won't work optimally in the same circuits. unspecified for 12AU7 / ECC82. This is a great way to familiarize yourself with LaunchPad while simultaneously making something cool. Dual Triode. / 12AU7. The 12AT7/ECC81 and 12AU7/ECC82 are different tubes with different operating curves. ECC82 is the exact European equivalent of a 12AU7. Haltron ECC82. datasheet (pdf format) $20. 12AU7 tube datasheet, cross reference, circuit and application notes in pdf format. Absolute Maximum Ratings* T A = 25°C unless otherwise noted * A Comparison of Current Production 12AX7 Tubes. ecc82. I have some Siemens E82CC which are military grade, but I haven´t listened to them im my amp so far. 10. Usually ships within 24 hours. Uf = 6,3/12,6 V. Low microphonics! Try searching the Tube Data Sheet Locator , the world's biggest index of tube datasheets. 6kΩ! As the grid is driven more positive the input resistance drops even more. 14 ECC82 page sheet date 1 1 1954. 6550С SVETLANA, 6550 tube datasheet, ECC83 PHILIPS, ECC81 tube datasheet. 00 ECC82 ( 12AU7) RFT German OLD AF-Twin triode Tube NIB. 9-Pin. jpg (26438 bytes). Typical characteristic: Ua. 06 4 4 1955. Honorable Mentions: Mulllard CV491 Short Plates, Amperex Short Plates, Tesla ECC802s, Mullard Box Plates – these were all tubes i enjoyed at one time, and are significant upgrades from stock tubes, but don’t have knock out characteristics The Rest: RCA Clear Top, Anything RCA, GE 6189 Black Plate, Tunsgram ECC82, 1 day ago · Find many great new & used options and get the best deals for AMPEREX 12AU7 ECC82 SINGLE VACUUM TUBE SUPER RARE K63 1956 FAT D GETTER at the best online prices at eBay! I have this JJ Tube that i use in my phase inverter (v2) on my Tweed Deluxe. Ia. 25V it is ~20kΩ for an ECC82 or ECC83, while for the ECC81 it is ~7kΩ and for the ECC88 it is a mere 3. = 250 V. März 2016 Beschreibung der Röhrensysteme für die Röhre: ECC82 Sockel der Röhre: ECC82 Bildquelle: Telefunken Datenblatt Bildquelle: Telefunken  Products 1 - 10 of 17 Maded only by RFT in Germany. A. AM/FM Oscillator. ECC82 Datasheet PDF Previous 1 2 The operation is the same on eithertubethe voltage range over which the current is nearly constant is given together with a maximum andtube may be operated. An amplification factor of 17 is quoted, which is much lower than that for the pin compatible ECC83 at 100. temperature of the 5963 is specified (at 120°) vs. 01 3 3 1969. ecc81. 5, 7,700, 2. This tube has been, and still is, widely used in the preamplifier stages of high fidelity audio equipment, musical instrument amps, public address equipment, ECC82/12AU7 double triode | Hifi Collective This indicates higher cathode quality, because the heater current is not higher. = -8,5 V. 12ay7 6072. Double Triode Data Sheet Page 1 of 4 Quick reference data • Anode current Ia=10,5mA • Transcoductance S=2,2mA/V • Amplification µ= Ei-RC Return to the Home page. 12AT7/ECC81. ECC82 R. 01 9 FP 1999. These are very rare in the USA, and often command very high prices. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. As well, this tube's low gain make it a great choice for tube preamps in hi-fi stereo systems The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode vacuum tube. ECC82 page sheet date 1 1 1969. Data Sheet. DOUBLE TRIODE. Ug = -8,5 V. The 12AU7 is a medium mu multi-purpose double triode in a 9 pin miniature package. "Ei-RC" - Electronic tubes factory Data Sheet. ECC804 6GA8. The Tung Sol 12AU7 ECC82 Preamp Tube combines two indpendant medium-mu indirectly heathed cathode type triodes in the small 9 pin button construction. Even so 6211 can be used at positive grid voltage, which is needed for the use a switch. 30. ECC32 6SN7GT. E80CC/6085: This unusual European tube is basically an industrial type 6085. DIMENSIONS AND CONNECTIONS: The 12AU7 (ECC82) is a Twin Triode vacuum tube, it is very popular in the audio world because it is rather rugged and can be operated at lower voltages. JJ ECC82 / 12AU7 Tube/Valve – Effectrode This note will help operators of BURLE power tetrodes to utilize all of the features built into these tubes and to achieve long tube life. 12AU7 datasheet from the RCA RC-29 Receiving Tubes Manual (NJ7P  ECC82 a. In most circuits it is used as a class A amplifier per triode section. The TAD™ 12AU7A/ECC82 is a direct replacement for also E82CC, ECC802, 6N10, 6189W, 5814A and others. Electronic tubes factory Data Sheet Page 1 of 4 ECC82/ 12AU7 ECC82 is A. Ug. Regarding Telefunken, there are ECC802S and ECC82 tubes, the ECC802S is a very expensive low-noise, long-life tube, and quite different from a ECC82. 0, 10. I give those numbers for you in the "Item condition box". I want to do this on EVERYBODY'S current production tubes and publish this. Big, warm, and musical. 3 . Product information 12AX7 (ECC83) TUNG-SOL. Heating is indirect by AC od DC, with serial or parallel supply. 01 6 6 1969. A. Noval. Since the sleeve of your headphones is common it completes the circuit. Views Read Edit View history. Author: Maria Quiroz Created Date: 11/6/2005 4:48:06 AM The 12AY7 has a tendency to lend a more balanced sound to a tube mic or pre. Maximum plate V for 12AU7, vs V for It is really a pain to exchange single dataheet, and control them with a tube tester, etc. ecc82 datasheet

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