Vacuum tube 12ax7wa, sovtek 9 pin miniature preamp tube amplification. Vacuum tube 12ax7wa, sovtek antique electronic supply. Specification sheet for gold t12ax7goldjj specification sheet for gold 470. The circuit design is referenced to vtl phono tube preamplifier. View pdf brochure for 12ax7wa ecc83 sovtek twin triode. We have fully tested each valve for you and give a 120 day warranty. Its rugged design and rich harmonics make this tube an obvious choice for musicians who need a reliable and high quality tube at a reasonable price. The preferred series 7025 is a high quality 12ax7 tube type. The sovtek el84 series produce an unbeatable smooth, warm, distortion. It supports both mm or mc phono input with riaa compensation. The input impedance can be changed by the dip switch.
Block diagram, pinout and 12ax7 circuit application inside. 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. Sovtek 12ax7wa datasheet pdf download adobe acrobat pdf reader. Sovtek 12ax7wa7025 preamp tube 12ax7wa electroharmonix. I thought the 12ax7wa in v1 added more bite and had a better response to pick attack.
Aug 06, 2019 12ax7 tube datasheet guitarkitbuilder from wikipedia, the free encyclopedia. It is used by fender, ampeg, carvin, and hartke, among others. It was developed around 1946 by rca engineers in camden, new jersey, under developmental number a4522. It was released for public sale under the 12ax7 identifier on september 15, 1947. Sovtek 12ax7 wa datasheet pdf download adobe acrobat pdf reader. According to 12ax7 datasheet, the 12ax7 is a miniature highmu win triode each section of which has an individual cathcode connection. High gain, and low noise, is nicely balanced all around not bright. In european usage specialquality valves of some sort were often indicated by exchanging letters and digits in the name.
Sovtek 12ax7wb datasheet pdf download adobe acrobat pdf reader. Extremely consistent from piece to piece, the sovtek 5881 is one of the most reliable current production 6l6s available. Sep 22, 2019 key data and drawings are shown below, or you can download the 12ax7 datasheet in pdf format. So far this tube in my first factory tests of these, they are pretty darn amazing. The sovtek 12ax7wa twin triode the same as a 7025, ecc83 is one of the most widely used. It is especially suited for use datashest resistancecoupled voltage amplifiers, phase inverters, multivibrators, and numerous industrialcontrol circuits where high voltage gain is desired.
The sovtek 12ax7lps is a long plated spiral filament dual triode. Output pentode quick reference data anode current ia48ma transcoductance s11,3mav amplification g2g119 output power wo6w heating indirect by ac or dc. Delivers a warm, round tone that sweetens any guitar amp design. The sovtek 6550we was designed to be the finest 6550 ever produced. Super low microphonics, and durable great for players on a budget. Eirc electronic tubes factory data sheet ecc8312ax7 page 1 of 4 ecc83 is a. Vacuum tube 12ax7 ecc83, jj electronics amplified parts. If the cathode resistor ratasheet unbypassed, negative feedback is introduced and each half of a 12ax7 provides a typical voltage gain of about 30. Players with combo amps or those who like to play on max volume may want to reconsider, as the 12ax7lps can be prone to microphonics due to the long plate. Mar 19, 2020 this page was last edited on 15 decemberat it was released for public sale under the 12ax7 identifier on september 15, most use heaters which can be optionally wired in series collection of ottmar rollmann d. Block diagram, pinout and 6h30pi circuit application inside. The 12ax7 was originally intended as replacement for. Vacuum tube 6550we, sovtek antique electronic supply.
The sovtek 12ax7wa is oem for a lot of major amp makers. Its relatively close to the electroharmonix 12ax7 with a little less gain. Twin triode, 12ax7 datasheet, 12ax7 circuit, 12ax7 data sheet. Manufactured in the famous reflektor plant in saratov, russia, these brand new tubes have been tested on the industrys most reliable, voltage controlled testing. Btw i play straight up 80s metal with silver mod ts9 dd3 and. The 12ax7 is a highgain typical amplification factorlowplatecurrent triode best suited for lowlevel audio voltage amplification. I do not know when they will be released to the public, but if the 100 samples i went though follow through to production, they will be a cool contender in the 12ax7 market, and probably at the same price as the wa or. Electro harmonix, and a chinese marshall tube in v1,2 and 3 all combinations. Jun 23, 2019 the 12ax7 is a miniature highmu twin triode, each section of which has an individual cathode connection.
Articles containing potentially dated statements from all articles containing potentially dated statements articles needing additional references from december all articles needing additional references. Articles containing potentially dated statements from all datasheet containing potentially dated statements articles needing additional references from december all articles needing. The 12axlps is a high mu dual friode with a spiral filament. The sovtek 5881 wxt6l6 wgc tube guide ii cracking the sovtek tube code. Jan 03, 2020 ecc83 datasheet pdf as of update the 12ax7 was made in various versions by two factories in russia winged c, formerly svetlana, and new sensorwhich produces tubes under the sovtek, electroharmonix, svetlana, tungsoland other brands for which the firm has acquired trademark rightsone in china shuguangand one in datasheeg jj electronicfor a. The initial 12 in the designator implies a volt heater requirement. This tube is a reproduction of the highly regarded and sought after mullards from the 1960s. The 12ax7 is a miniature high mu twin triode each section of which has an individual cathode connection. This is the mullards 12ax7 twin triode tube highmu double triode for use as an amplifier or phase inverter. It is especially suited for use in resistancecoupled voltage amplifiers, phase inverters, multivibrators, and numerous industrialcontrol circuits where high voltage gain is desired. The jj electronic 12ax7 ecc83 has quickly become a modern classic in preamp tubes. The 12ax7 is a miniature highmu twin triode each section of which has an individual cathode connection.
Tube depot carries a selection of 12ax7 ecc83 7025 cv4004 pre amp vacuum tubes. This ultra low microphonic tube is used by fender, ampeg, carvin, and hartke, among others. Warranty information and return policy warranty period. A centertapped heater permits operation of the tube. Chances are if an amp uses 6l6style output tubes, it has sovtek 5881s in its sockets. The lower ac stray field sonstitvtty, combinod with oxcollant inoartty, make for a suparlor 120w. Thicker plates, improved heat dissipation, higher transconductance, and increased linearity are just some of the inherent aspects of the new sovtek super 6550s.
The 12ax7 was originally intended as replacement for the 6sl7 family of dualtriode amplifier tubes for. Vacuum tube 12ax7 ecc83, jj electronics ce distribution. This 12ax7 is a dual triode currenty produced in russia. It uses four 12ax7 vacuum tubes in serial commoncathode configurations and buffer stage to provide sufficient voltage gain for weak phono input signal. Rca and sylvania first introduced the 12ax7 to the world in the late 1940s. Sovtek 12ax7wa vs sovtek 12ax7lp discussion in ampscabs tech corner. Order sovtek 12ax7wb vacuum tubes online, in stock and ready to ship. Full size base for easy installation in vintage amp designs. Moderate gain compared to the jj tesla and tung ground. Vacuum tube 12ax7wa, sovtek image 1 vacuum tube 12ax7wa, sovtek. Jun 19, 2019 12ax7 datasheetpdf general electric company. May 23, 20 the 12ax7 is a miniature highmu twin triode, each section of which has an individual cathode connection. The 12ax7 is especially suited for use in resistancecoupled voltage amplifiers, phase inverters, multivibrators, and numerous industrialcontrol circuits where high voltage gain is desierd. Double triode quick reference data anode current ia1,2ma transcoductance s1,6mav.
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