They were made in china even the ones that said made in usa, of which i have a few. The important thing to keep in mind here is that most amps require a matched set. However, formatting rules can vary widely between applications and fields of interest or study. I just put some groove tubes el34ms in my yjm100 today and man do they sound good. Guitar world in mourning for groove tubes founder, aspen. Because the v2s tube is a kind commonly used in guitar amps, compatible models are often stocked at music stores. Groove tube offers some of the best quality matched power tubes and preamp tubes on the market. Aspen pittman, the man behind hugely popular valve maker groove tubes and the author of the influential the tube amp book died in a car. Groove tubes was started in the late 1970s by aspen pittman, who had a lifelong fascination with tubes and tube tone. Mr pitman also promotes his company groove tubes quite a bit. Already known as the bible of tubes and tube amps, the tube amp book is now even better. From these humble beginnings, jj presently manufacturers close to 30 different tube as well as capacitors and amplifiers in a stateoftheart facility in the picturesque western carpathian mountains of the slovak. Get this book for the extensive collection of schematics and cool amp pictures, ignore the sales pitches and especially the tech info, as much of it is incorrect. If you are buying a groove tube 6l6ge, you are buying a shuguangmade tube.
Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle. Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. A musthave book for anyone considering working on tube amps. Whether you are replacing the tubes in your guitarbass amp. Today, youll hardly find a professional guitarist who doesnt have a set of groove tubes in his amp. His curiosity eventually led to inventing a whole new standard for matching guitar amp tubes one that works. Groove tubes started in southern california, and through innovative design, rigorous selection and testing, gtpowered amps have rocked the world in some of the most famous rigs ever played from studio. He developed a new and unique tube testing, evaluation, ad matching system that produced better sounding and longer lasting sets of replacement tubes for guitar amps. Aspen pittman, founder of groove tubes and author of the tube amp book, died last weekend in a car crash in southern california. Groove tubes gt6l6ge pentode this is our flagship gt tube, the one we spent nearly 4 years developing from scratch after purchasing the original general electric design, the original rca grid winding machines that made this tube, and tons of the original materials. Now, groove tubes are the mostused tubes in guitar amps and a favorite of tone aficionados. Groove tubes gte34ls power tube medium duet e34ls power tubes set of. This is the best tone yet from an amp that is already my all time favorite amp.
Aug 12, 2019 aspen pittman, founder of groove tubes and author of the tube amp book, died last weekend in a car crash in southern california. Expect for a few exceptions, groove tube imports, tests, rates and marks g. Its a great time to upgrade your home music studio gear with the largest selection at. Groove tubes went on to sell amps, processors, mics and many other products. In 1979, he founded groove tubes and revolutionized tube amps. He has designed dozens of tube guitar amps, stage and studio microphones, and has designed and built over a dozen unique electron vacuum tubes from scratch. In other words, they buy large quantities of tubes produced by companies such as shuguang in china or jj electronic in slovakia, and they test and rebrand them. Pittman spent the 60s working at the first guitar center. Groove tubes guitar electronics w aspen pittman and steve trovato. In electronics, a vacuum tube, electron tube in north america, tube, or thermionic valve or valve in british english is a device controlling electric current through a vacuum in a sealed container. This fascination led to aspen and a team of technical experts to reevaluate the way tubes were tested and matched.
They are available to offer you personalized product advice any time you need it. There are also qa numbers on some current production tubes that are quite good. I used to read it every night to learn how amps worked and finally understood the concepts of signal flow and push pull amplifiers. Guitar world in mourning for groove tubes founder, aspen pittman. The guitar world mourns the passing of aspen pittman, groove. Power amp is true 2channel stereo with 2 output transformers mercury magnetics and a common power transformer mercury magnetics. Other gt highlights are aspens bestselling book, the tube amp book, with. Save tube amp repair book to get email alerts and updates on your ebay feed. Ideal for gigging musicians who need plenty of stage volume and lots of distortion, the jet city tube amp rocks everything from soft, melodic tones to downright dirty riffs.
Bookalready known as the bible of tubes and tube amps, the tube amp book is now even better this deluxe revised edition contains 40% new material, with a comprehensive az section covering all the great tube amp manufacturers, with histories, photos and information. Their years of working with tubes have made them number one. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. Books, tutorials, and technology for guitar amplifier circuit design. Groove tubes started in southern california, and through innovative design, rigorous selection and testing, gtpowered amps have rocked the world in some of the most famous rigs ever played from studio to stage. It is the responsibility of the customer to consult with the equipment manufacturer with regards to proper tube and parts replacement and recommended proper biasing procedures. Aspen pittman has produced various versions of the tube amp book over the years this is the 1991, a 703 page trade paperback weighting in at a little over two pounds. These are found in lots of tube amps, and groove tubes have got plenty to choose from. Ecc83 12ax7mgroove tubes super premium groove tubes groove tubes super premium valves take the selected gt.
Formed in 1994 with former tesla equipment, jan jorgo started jj manufacturing with just three tube types el84, el34 and ecc83. Aspen pittman and crew at groove tubes has put together this brilliant new edition. Groove tube gt6l6r russian amp vacuum tubes a mediumoutput power tube generally 2025 watts often used in fender professional amplifiers including the bassman, bandmaster, concert, dual showman, hot rod series, pro series, super. Neither, for that matter, do fender who now own the groove tubes name, ruby tubes and a host of other companies manufacture tubes. It has tube manual type specs for the most common guitar amp tubes as well as some modifications for certain amps. This deluxe revised edition contains 40% new material, with a comprehensive az section covering all the great tube amp manufacturers, with histories, photos and information. The amps have a reputation for a high consumption tubes, maybe due to a hot bias. Original groove tube trio preamp in very good condition has a few case scratches on it, but thats about it. Pittmans the tube amp book to get acquainted with tube amp customization pro. Each selection below will lead you to the brands and models you love for all of your equipment.
He made an even bigger mark on the guitar world with the tube amp book. The second half though is a good source of schematics which is what ive always valued it for. Sweetwater s sales engineers are regarded as the most experienced and knowledgeable professionals in the music industry, with extensive music backgrounds and intense training on the latest products and technologies. Numerous and frequentlyupdated resource results are available from this search. There is nothing like playing a guitar through a good tube amp. Ive never had much use for the first half it glossy photos of classic guitar gear and a catalog of groove tubes product line. Sep 12, 20 the truth is, companies like ruby tubes and groove tubes are essentially tube dealers, testers, and rebrandersnot manufacturers. Pittmans the tube amp book has sold more than 140,000 copies worldwide which is a strong testament on the value of this book. Dec 08, 2008 the tube amp book has always been a sort of infomercial for groove tubes. The hard copy pages are only a sampling of all the schematics found on the cd.
This deluxe revised edition contains 40% new material, with a comprehensive a. The truth is, companies like ruby tubes and groove tubes are essentially tube dealers, testers, and rebrandersnot manufacturers. The jet city amplification jca5012c 1x12 tube guitar combo amp has you covered with 50 watts of output that comes from a pair of 6l6 power tubes. Aspen pittman, passed away august 10, 2019 from injuries suffered from an automobile crash in southern california the day before.
Get the guaranteed lowest prices on groove tubes preamp tubes instruments at musicians friend. If you do not know what you are doing and you want to build your own amp, this book will not be a help. Back about 15 years ago, the gerald weber book was practically the only tube amp book you could find in stores and the aspen pittman book came out later which was written more clearer and came with all the schematics. These are chinese mullard dual getter copies that groove tubes fender makes. Nov 08, 2008 groove tubes founder aspen pittman, meanwhile, was on the shop floor cutting deals with customers and signing copies of his tome the tube amp book. Groove tubes started back in the late 1970s when aspen pittman, founder and visionary, hired some technical folks to explore why tubes performed and sounded so different. The tube amp book has always been a sort of infomercial for groove tubes.
Groove tubes founder aspen pittman, meanwhile, was on the shop floor cutting deals with customers and signing copies of his tome the tube amp book. Very hard to find used by jerry garcia late in his care. A directory of tube amp companies tubes, mechanics, and mystique why change tubes. If you look at the hard cover tube amp book from groove tubes you will find pieces by me. Groove tubes guitar amplifiers for sale in stock ebay.
Groove tubes guitar electronics w aspen pittman and steve. Aspen started the groove tubers gt company when becoming a stay at home single dad in the late 70s. Finding ul rate tubes is common in nos offerings from raytheon and rca command series to mention just two out of dozens. His best selling tube amp book has sold over 140,000 copies. The power rating on my new tubes are 4 and they are biased at 38 ma. Z, fender, gibson, hiwatt, marshall, matchless, mesaboogie, orange, vox. Pittman also penned the tube amp book, considered a bible.
Myles rose explained that none of the groove tube 6l6ges the supposed copies of the ge 6l6 were ever in fact made in the u. The simplest vacuum tube, the diode, contains only two elements. Aspen pittmans designs have been coveted by legendary musicians and record producers for nearly 40 years. Thankfully, groove tubes have been thoughtful enough to package most of their power tubes in sets, so its easy to get what you need. Now in its 5th reprinting, the tube amp book has sold over 75,000 copies, and has awakened and educated a modern guitar generation to everything great. Likewise, pittmans groove tube uniquely designed pro audio products are found in worldclass facilities around the globe. Has been recently serviced by a local boutique amp builder, and everything checked out fine. Groove tubes started back in the late 1970s when aspen pittman, founder and visionary, hired some technical folks to explore why tubes performed and sounded the way they did. Groove tubes became the centerpiece of our business so we later renamed the. May 25, 2012 groove tubes guitar electronics w aspen pittman and steve trovato.
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