Jj electronics el34 ii power tubes available in singles, matched pairs and quads. U a 250 v u g2 250 v u g1 7,3 v i a 48 ma i g2 5,5 ma s 11,3 mav. I still have an one old usa manufactured ge plant groove tubes set 6l6 pair and 12ax7 specimens unused and new in gt boxes somewhere in my basement. Vacuum tube el34b, tube amp doctor antique electronic supply. Groove tubes soulo series 75 operating manual pdf download. The power rating on my new tubes are 4 and they are biased at 38 ma. Groove tubes gtel34m mullard power tubes medium duet. Nice warmth, plenty of detail, but will retain a little more top end extension than the sed winged c. Well rounded and balanced tube when it comes to the highs and lows as well and plenty of play with my controls on the amp now. Get the guaranteed best price on power tubes like the groove tubes gold series gtel34m matched power tubes at musicians friend. The groove tubes el84s is the european version el84, with even more response, higher power and warmer tone. With respect to the use of el34s, it states on the case of the amp next to the power tubes that you can use either el34s or 6v6s. Groove tubes gte34ls pentode check out the power of this gt exclusive tube we introduced more than 12 years ago in a special partnership exclusive with the folks at tesla, the factory now called jj. You can get them elsewhere the mesa str 447 is the same tube but with tubes its all about cherry picking, and gt gets their share of the best ones along with mesa.
The gt el34 is based on the original mullard el34 of the. For over 30 years, groove tubes have been trusted and demanded by. In a stereo system or remote head, these should provide a good tonal balance and service life. Output pentode el84 is an output pentode for use in guitar and hifi amplifiers. The standard normal breakup hardness is numbered 46. So, here is a rundown of how these tubes differ in sound.
I just put some groove tubes el34ms in my yjm100 today and man do they sound good. As far as el34 vs kt66 tube goes for the modern home audio equipment, the modern el34 has much higher demand and longer history than the modern kt66 due to hard to find nos el34 mullards and telefunkens. Groove tubes gtel34r medium power amplifier tube, matched. Two tubes can be brand new in the original box, with one testing at as an example 6500 micromhos, the next one at 8600 micromhos.
Very durable and consistent, which is good for manufacturing, but the distortion can be slightly harsh and it lacks a little high end. This russianmade pentode is standard on many uk amps and has great durability, although as with most russian power tubes the break up is a bit harsh and they lack high end as compared to the true european models. So, gt preamp tubes were a premium price for about the same outcome you would get with a non gt version of the same tube imo. Production standards then were very high and consistent. Power tube selected pair, approximate diameter of glass. The tubes that readers ask about most often are the el84, el34 and 6l6. El34 s is an economical method to achieve high quality sound with a minimum of driving stage components. I emailed bob at eurotubes and hes telling me that the groove tube el84s ive got in my classic 50 are. Tubedepot carries a selection of el84 6bq5 7189 power vacuum tubes. El34 jj electronic vacuum tubes, capacitors, amplifiers. Fortunately, many manufacturers use power tubes that fall in the same specification as medium 47 fine.
Petersburg, russia, and is designed to be a direct replacement for any el34 6ca7 or equivalent. Octal power tube max plate watts 25w sensational new highgain el34 tube with. This applies especially to power tubes like el34, 6550, kt88s, etc. 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. Groove tubes gt6l6ge gold series medium output power. For over 30 years, groove tubes have been trusted and demanded by touring professionals and their techs. Further improving the design, we added gts exclusive heat sink wings to the plate assembly. Groove tubes gold series gtel34r matched power tubes medium. It is the perfect el34 for vintage equipment and a sure way to improve the performance of modern equipment.
Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. A good way to describe the tone in one word would be to call it cardboard. If so, you should have a qualified service tech rebias your amp for the new tubes. With respect to the use of el34 s, it states on the case of the amp next to the power tubes that you can use either el34 s or 6v6s. Groove tubes gt6l6gedm 6l6 ge reissue medium performance matched duet pair. There were a number of variants of the original tube and gt chose the classic xf2 dual getter version to reproduce. View and download groove tubes soulo series 75 operating manual online. The hardness rating is the degree to which the tube breaks up or distorts, when driven to its limits. As with many of the eastern european tubes, mechanical noise is an issue if used in high power combo style amps. These el34 ii tubes are an upgrade on the el34 pricing fuller lows and mids. Groove tubes power tubes are matched and rated in low, medium and high output levels. Mullard el34 a modern recreation of the classic mullard.
These are chinese mullard dual getter copies that groove tubes fender makes. They are really functional for overall tone and accidental abuse along the way. Its the electroharmonix el34 tube, but all the russian el34s are the same ones in different looking packages. This exclusive groove tubes design is a close copy of classic the mullard type with good power and flat tonal response.
Groove tubes gt6l6chp pentode our most recent release of a totally redesigned 6l6c featuring addition of pure nickel carborized black plate construction, this is the same material used on the classic rca black plate versions of the 50s. Therefore, the eastern european el34 tubes has come a long way to make something decent when compared to its kt66 line. Get a low price and free shipping on thousands of items. About groove tubes gt el34 r a more modern implementation of the original at an affordable price and currently standard issue on many u. About groove tubes gtel34r a more modern implementation of the original at an affordable price and currently standard issue on many u.
Operating conditions for two valves in pushpull distributed load conditions with screengrid tapping at 43% of primary turns 430 1 425 2 x 62. Noval u f 6,3 v i f 0,760 ma typical characteristic. The groove tubes 6l6c are a remake of the chinese 6l6 that has a shimmery and articulate sound that is not too compressed. Groove tubes gtel84s medium power amplifier tube, matched pair 2.
Exhibits many of the same characteristics as the el34, but with a power output of roughly 58 watts. The sound is well balanced with tight bass response and great mids. Price is for a matched pair with medium rating which is the most versatile. Groove tubes el34 m quad this tube is based upon a tube which is considered something of an icon to el34 users in both the audio world and guitar amp world. Groove tubes gold series gtel34m matched power tubes. The el346ca7 types of pairs and quads made by groove tubes may be ordered with factory matching with respect to both gmplate current and hardness ratings. The new electroharmonix el34eh tube is extremely musical, with a sound that is rich, smooth, and highly detailed without being edgy. Groove tubes el34m quad this tube is based upon a tube which is considered something of an icon to el34 users in both the audio world and guitar amp world.
Power tubes el84 el34 6l6 kt66 6550 kt88 el846bq5 sovtek el84. Output pentode suitable for use in power amplification quick reference data anode current ia100ma transcoductance s12,5mav amplification mg2g111 output power, class b wo100w heating. Below is a list of the most common power and preamp tubes. It also has great tone and it remains one of our best selling tubes. Output pentode output pentode rated for 25w anode dissipation, ntended for use in a. Egroove tubes re issue super premium groove tubes 25 % discount groove tubes super premium valves are specially. Perfect el34 for vintage equipment and for improved performance of modern amps. The l tubes also have a higher voltage rating then a standard el34 so a better choice when switching from a 6550 which have a higher voltage rating to el34s. Get the guaranteed best price on power tubes like the groove tubes gold series gtel34r matched power tubes at musicians friend. This is the best tone yet from an amp that is already my all time favorite amp. El34s is an economical method to achieve high quality sound with a minimum of driving stage components.
Weve been playing these in everything from the primaluna amps to the manley classic 250s, and they sound great. The el34m is made at shuguang factory for groove tubes using special equipment supplied by groove tubes. It interchanges with any el34 application and puts out about 1520% more power. Groove tubes gtel34r russian power tubes medium duet. Groove tubes gold series gtel34r matched power tubes. Tubes free delivery possible on eligible purchases.
Its sound output is warm, sturdy, full of dynamics and analog style, and has an excellent performance in depth and details. Output pentode output pentode roted for 2sw onode dissipotion, intended for use in a. Both tubes would be considered new by the factory, and not defective. Power amplifier duet 2 tubes manufactured in russia, the grel34r has now. The svetlana el34 is manufactured with the original mullard design in the svetlana factory in st. El34m has a bit more bite with vintage feel to the tone than tubes like jj e34l.
The tone is similar to the mullard style el34 imho, great mids and highs with pretty firm. The el84 tube has a snarly sound bright with midrange punch, and is usually found in smaller wattage amplifiers. El34 groove tubes reissue of original mu tel34mmpgt. Groove tubes gold series gtel34m matched power tubes medium. Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. El34b tungsol key electrical data cathode heater volta e acdc heater current cathode to heater volta e interelectrode ca acitance. Groove tubes gold series gtel34m matched power tubes medium 47 gt rating quartet. Its the electroharmonix el34 tube, but all the russian el34 s are the same ones in different looking packages. I have been using electro harmonix el34 tubes since they came out and find that the low noise level and great tone they provide is perfect in mesa boogie marshall amps.
The good news, is that once this is done, you should be able to replace your power tubes with groove tubes of the same type and rating without bias adjustment. Groove tubes el34m is a replica of dual getter mullard el34. Learn more about groove tubes and purchase upgrades and replacement. This is a singleended vacuum tube power amplifier with one 6n4 driver tube and two el34 power tubes. What is the difference between el84 el34 and 6l6 power. Like groove tubes i am generally impressed with tad products. Shop for the groove tubes gold series gtel34m matched power tubes in medium 47 gt rating quartet and receive free shipping and guaranteed lowest price. Choosing and using vacuum tubes includes information on replacement tubes for hundreds of amplifiers. Groove tubes gt6l6ge gold series medium output power tubes matched pair. I bought these tubes for my sovtek mig 60 and the amp came alive. Output pendode el34 is an octal power tube with a maximum plate power of 25w. El34, 6v6, 6l6, etc that the circuit was designed to accommodate. Jj electronic vacuum tubes, capacitors, amplifiers. Shop for the groove tubes gold series gt el34 m matched power tubes in medium 47 gt rating quartet and receive free shipping and guaranteed lowest price.
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