Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. The genalex gold lion kt66 is a robust and reliable kt66, it is highly recommended for hifi and guitar amp applications. Genalex gold lion kt66 reissue precision matched tc tubes. Srv used the kt66 with his fender amps for his outrageous guitar tone.
Vacuum tube kt77, genalex gold lion amplified parts. Kt66 again same design as all of the above, but slightly bigger bottle design and a higher amperage draw on the. As for the difference in heater current, if your 6l6 amps power transformer cant deliver the extra current to power the kt66s, you risk damaging the transformer if you run. Built to the highest standards and is very reliable. The gold lion genelex kt88 reissue has great sound quality and performance.
Kt88 vacuum tube made by genalex gold lion tetrode. The purpose of this kt88 kt66 6550 kt90 kt120 page is to give an overview about what kt66, kt88. This kt66 has a very articulate tone, and nice dynamics. Great substitite for the 6l6gc, but consult your amps manufacturer. Although the rca 6l6 of 1936 the result of a license agreement between rca and mov was the first true beam power tube on the market, the later kt66 became almost equally famous, at least in europe. The golden dragon kt66 retro combines the same shape and style of the original gec and mo valve designs with modern materials and manufacturing techniques. Octal u f 6,3 v i f c a1,6 a typical characteristic. General initial impressions genalex gold lion kt88 reissue ive been on a tear of tube rolling with no end other than to try things out and see how i like them. Those tubes are generally run at different operating parameters so, other than assuming that some differences may be noted, its not possible to have a clue about what those differences may be without knowing platescreen voltages, bias, primary impedance of the opt. For a collection of datasheets, follow the link to at the top menu. Genalex gold lion kt66 datasheet pdf download adobe acrobat pdf reader. Pair factory platinum matched genalex gold lion kt66 kt66.
The original company did produce a kt63, however, which was like a scaled down kt66 to operate in place of the 6v6. This tube made the marshall jtm45 plexi amps famous in the 1960s and the quad amps a legend. Kt886550 compatible single ended amplifier 5th jan 2014 using fladance mp player 8w rms. According to the manufacturer the gold lion kt88 is an attempt to recreate the original genalex, which was introduced in 1957. Kt77 vs kt88 talkin tubes the klipsch audio community. Warranty information and return policy warranty period. Correct orientation of the valve socket for horizontally mounting the kt66. Genalex golden lion are super valves for hi fi and guita amplifiers. The kt66 has a higher dissippation than its 5881 and 6l6gc counterparts, and if your amps bi. Far more reliable than the jj kt77, and even more beautiful sonically.
The two tubes were nearly interchangeable, except that the kt66 was somewhat more rugged than the early metal 6l6. Kt90 and types and brands exist, and what you can do with the this tube. They exhibit a large detailed soundstage that is sought after by discerning audiophiles who demand the highest. Also the most common electrical circuits are given for kt88 and 6550. Gold lion kt77 a modern recreation of the legendary genalex kt77. Two valves in class ab1 give a continuous output of up to 100w. Vacuum tube kt66, genalex gold lion amplified parts. The purpose of this kt88 kt66 6550 kt90 kt120 page is to give an overview about what. After extensive research and engineering, new sensor corp. It is as comfortable in guitar amps as it is in hifi applications. Tungsol 6v6gts are the holy grail for players who crave the sound of a fender princeton, deluxe or champ, or those who. For example if youre looking for a chuckle, over on page 4 it says that the life expectancy when operated at absolute maximum ratings is 5,000 hours, or 10,000 hours at 25 wattsgood luck with that. Feb 18, 2012 this was the datasheet for the original gold lion kt77. Our exhibit is a postwwii device, probably dating from the 1960s.
After many years designing single ended amplifiers i have decided to start a series of test about the push pull amplifiers. They are hard to find and when they are available, they are expensive. Gold lion kt88 made in england draft of new spec sheet 4302002 beam tetrode 63v indirectly heated the kt88 has an absolute maximum anode dissipation rating of 42w and is designed for use in the output stage of an a. When looking at the datasheet for the gold lion again, dissipation is listed as 32 watts absolute and 25 watts design max. Genalex gold lion kt88 has been recreated down to the finest detail with gold plated grid wire, carbonized screen grids, and a trialloy clad plate structure for exceptional performance and sound quality. Kt88 genalex gold lion one top getter, 2 side getters. Electroharmonix owns 100% of the largest remaining vacuum factory in the world. Reports in the field say this is one of the most durable el34 types currently available, and so far our tests agree with that. The genalex kt77 tube delivers all the mid punch you would expect in an el34 but also has a top end that is more open and bright. Genalex gold lion is a registered trademark of new sensor corp. The kt66 was very popular in european radios and audio amplifiers. The kt66 has a higher dissippation than its 5881 and 6l6gc counterparts, and if your amps bias range is set low you may not be able to bias these. Have a look at a kt66 datasheet, youll see a graph of distortion vs load with lower distortion for higher load until the output power starts to drop off.
Finding these tubes at a reasonable price is next to impossible, and this is a way to get an excellent value on these wonderful tubes, especially if you need current matched tubes for your amplifier. These are factory tested at real world operating voltages. Purchase genalex gold lion kt66 vacuum tubes online, in stock and ready to ship. Apr 11, 2019 as i undersand osram, genalex, gold lion or any other entity owned by them never actually made a 6v6gt, so you can rest assured it is a new product.
The gold lion genelex kt66 is an excellent copy of the original genelex reissue made in russia. The genalex gold lion kt77 is a great power tube for both guitar and hifi amps. From the manufacturer, exact copy of the original clear glass kt66. Quad factory platinum matched genalex gold lion kt66 kt66. In the 1950s the production used black base caps and prewwii had the classic envelope shape. This is a real kt66 with large curved glass envelope and a rounded brown base. The gold lion kt66 tube is a reissue tube that is made in russia. Curve trace matched at hot rox uk valves original genalex gold lion ecc83b759 tubes are considered among the best 12ax7 types ever made. From the 1970s kt66s lacked the internal carbon dust coating of the glass bulb. Buy genalex gold lion kt88 power vacuum tube, platinum matched quad, pack of 4. Used in 50s60s hifi favorites such as the heathkit w5m and many leak amplifiers. No one can tell you what differences you may perceive. Great mids, smooth, airy highs, incredible bass, wonderful 3d presence, and that natural glory. These new production genalex gold lion kt66 power tubes can be run in any amp that.
This russian reissue tube has smooth tone, and excellent broad frequency range definition. It was the standard output tube in the classic quad ii 1952, a version of which is still being manufactured today and in the leak type 15 1945 and tl12 1948, both among the earliest british hifi amplifiers. This tube has been recreated down to the finest detail with gold plated grid wire, carbonized screen grids, and a trialloy clad plate structure for exceptional performance and sound quality. Spec said will be get 10w rms with 6l6 but actually never get 10w rms. To be labeled genalex gold lion, tubes must endure and pass the toughest testing the. Used in 50s 60s hifi favorites such as the heathkit w5m and many leak amplifiers. Vacuum tube kt66, genalex gold lion super premium power beam tetrode. Ig2 max sig 2x9 2x10 ma pout 30 17 w dtot 6 4 % pushpull class ab1, ultralinear selfbiasing. These audio tubes are of unsurpassed quality and reliability. Tell me about kt77 in place of el34 discussion in ampscabs tech corner. Please see the substitutes at the top of the page for more details.
Genalex gold lion kt66 power tube kt66 genalex electro. These specifications are provided asis, with no warranty of any kind. Use of these parameters shall be entirely at the users own risk. Brand new, factory matched quad 4 genalex kt 66 6l6.
The tungsol 12ax7ecc83 is the gold standard of preamp tubes favored by guitar tone junkies, and one of the most important links in your tonal chain. No manual adjustment needed most auto bias or cathode bias amps. Vacuum tube kt77, genalex gold lion genalex gold lion kt77 beampower. 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. It is either kt66 or on the other hand, and this is really a dirty way to fool you, they give you the impression these tubes are handtested, and you would think what you read on the certificates are the results. The kt66 is a very well known audio output beam tetrode valve. Fixedbiasing selfbiasing ua 552 450 v ug2 525 425 v.
Oct 24, 2010 ive been given some tremendous advice on this and im going to bring the issue to conclusion by summarising as clearly as i can. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. The kt88 was introduced by gec in 1956 as a larger variant of the kt66. Gold lion kt66 russian reissue of the legendary genalex. Tell me about kt77 in place of el34 page 2 the gear page. Kt66 tubes advice needed steve hoffman music forums. I am trying out the genalex gold lion kt88 reissues8 of themin a primaluna dialogue premium hp integrated.
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