Recommendations for 6h9c 6sl7 tubes canuck audio mart. Hi end phono preamplifier soon available in kit or. Hogy mentioned there was a higher gain tube i could pop in the socket, but i never explored it as i did not need more gain. If i could only use new tubes in it, i would go 12ax7.
If given the choice of using any octal nos tube, i would pick 6sn7 over 6sl7. Amplifier was designed utilizing four tubes, one 6sl7 input can be substituted with 5691 and two 45 output can be substituted with 2a3 and 1. There is an argument that passive interstage riaa filters sound better than filters. Telefunken electronic schematics, sound speaker, hifi audio, vacuum tube. By the way these two 12sx7s have entirely different plate structures. A community dedicated to helping everyone learn the art of audio. These are great 6sl7 substitutes said to sound sweet, but are rare. All have extra support rods and mica, and are very rugged tubes that sound wonderful. I have used a few of the short glass 6sl7 black plate tubes, and shuguang black glass variants and prefer the shuguangmore impact, and taught. In a phono or microphone preamplifier, the 6sl7 is a great choice of amplifying device and the shuguang treasure 6sl7 may be the best of modern production. Confused about the differences between class a, class ab, and class d amplifiers. Higher mu makes this tube desirable for use in voltage amplification stages of audiophile tubes. The soundfilm industry was largely responsible for stimulating development in the. Tube 6sl7 or rohre 6sl7 id2112, double triode, octal int.
Also, i have previously posted some suggestions for a tube amplifier wiring color code that you can use during construction. Join paul as he explains the differences between these different amplifier classes. View similar products to the sovtek 6sl7 vacuum tube in the vacuum tubes product category. Ive had good results using this with 6bm8 6f3p and el84s, never tried it with 6v6s.
Get a low price and free shipping on thousands of items. Hiend phono preamplifier soon available in kit or assemblednov 27 st, 2008. This page lists all of the 6sl7 tubes i currently have in stock, including all industrial. The great thing about the 6sl7 is that nos tubes are readily available at affordable prices. I love the rich tone of the octal tubes like the 6sl7 over that of the 9pin tubes as the 12ax7. Tube testing equipment why we dont sell certain brands filter by all 12at7 ecc81 6201 cv4024 12au7 ecc82 cv4003 5814 12ax7 ecc83 cv4004 5751 6922 6dj8 7308 pcc88 6sl7 5691 cv1985 6n9 6sn7 5692 cv1988 6n8 hide price misc.
If you arent sure about which valve you need, or what tubes you can substitute, let us help you. Due to the covid19 virus outbreak, the state of illinois has ordered all nonessential business to close, through april 30th. Not nearly as good as the hybrid version, but for a puretube version working into a 50ohm load, it is fairly good. With the tiny signals from phono cartridges, avoiding hum is an additional challenge, through careful earthing grounding arrangements and careful cable dressing. The first valve comprises the input gain and the driver for the passive riaa filter. Jan 04, 2016 i fitted the cv181z and 6sl7z first and listened to a significantly improved openness i should have done more listening to get a better appreciation of the difference, but could not wait to add in the kt88 treasures. In this case, i think you want to stick with the 6sl7. Brand new tungsol reissue 6sl7 gain tested vacuum tube. Shipping was very quick and the charge was minimal. Tube 6sl7gt or rohre 6sl7gt id2101, double triode, octal int. For additional tube amp design and construction tips, see my design and construction tips and suggestions for vacuum tube amplifiers. Vt229 and 6sl7wgt variants are military spec versions. The amp was designed with the 6sl7 in mind the amp factor of 70, so i do not why you would want to substitute a 6sn7 for a 6sl7. Vintage 6sl7 tubes hand picked for audio applications.
These are vintage tubes mostly from the usa with a few european types. You can use the audio out from an ipod, cd, dvd, mp3, computer, tv, xm or sirus to the input connection of this amp. Tung sol 6sl7 dual triode tube american musical supply. I ordered a brimar 6sl7gt and 2 ge 6da4as for my eddie current zana deux headphone amp. The first electronic amplification of sound was done with vacuum tubes. For the 6sl7 slot my very favorite is a sylvania vt229 military designation for a 6sl7 black plate from the 1950s or 1960s. So, if you disagree with every tube i ever mentioned, i have to question your amplifiers, quality of your speakers and frankly your experience. Hi, i am using this tube for preamp section in gemtune x1 amp, giving me more sweet sound, especially mid frequencies.
Nis multisim has an evaluation version with all of the built in tube models one could want. I consider these tubes to be the gold standard of 6sn7 tubes. Get the guaranteed best price on preamp tubes like the groove tubes stubti tube 1 6sl7 to 12ax7 octal to 9pin adapter at musicians friend. A highmu twin triode used in resistance coupled circuits, such as voltage amplifiers or phase splitters. They are new production premium tubes and sound good but a pair of old stock tubes found on cam would be at least as good for less money. The almarro uses a 6sl7 as the input tube and the 6sn7 as an anode follower im not sure what that is. More electron tubes can be found in the tube store collection of new old stock nos if you are looking for a tube shop carrying the very best tubes for your amplifier, youve come to the right place. Any 5692 with a red base will have been made by rca regardless of the actual branding on the tube. There are many very well versed people on most all tubes. Ya, my b15n has 6sl7s and i love it, yet my svt and v4b have 12ax7s and i love them, too. Uk6sn7 are newcreation, never have the better costeffective in the history of psvane. Just like the shuguang treasure 6sl7 z tube, the natural sound 6sl7 t tube has sound qualities that rivals the best nos vintage 6sl7 tubes. As it does for example in my octal preamplifier mk1.
Just like all rca tubes, these are very high quality tubes and sound great. Years ago, after hearing them, i continued to collect them. This unique hpcc coating is known as high polymer carbon compound glass coating and is unique for its ability to reduce stray electron emission that can otherwise reflect off. Again the sound was improved less bass slam tighter read more.
The start with this little amplifier was the christmas weekends and all spare time i. Nos performance and sound at a fraction of the price. I had more exotic tubes such as vintage genalex than one can imagine. 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. Im not sure if it is interchangeable in that amp to drop in a 6sl7. Sweeten up the preamp section of that vintage ampeg b15. Guys, a while back i wrote about some tube rolling i was doing, and that i found that the brimar cv1985 was one of the best 6sl7 types ive. Best sounding 6sl7 short glass version tubes advice need. Nothing else is as full, wide, deep, accurate, and emotionally allenveloping as the jan rca and jan rogers 12sx7 tubes.
With a bit of practice you can see how a circuit is going to sound before you ever build it another skill worth having. The brimar sounds awesome the best driver tube ive heard in this amp. If youre more comfortable buying new and like the look of those you could try a pair of northern electric 6sl7 at. They were part of the rca premium red line which had red colored bases. After almost one year time, these hifi uk series vacuum tubes were come out by development team of psvane.
Ecc35cv5696sl7gt mullard 1950s 1960s this 6sl7gt sounds superior to any us made 6sl7gt. The 6sl7 was never as popular as the 6sn7due to the 6sn7s widespread use in television chassis designso this tube does not turn up as often whenever vintage tubes are being sold. This amplifier layout has been carefully designed using a combination of vintage, and high quality components. Tc tubes and audio repair repair services include tube and solid state gear, turn table setup, and tube testing in twin cities metro area. They feature gold grid wires and pins, and internally coated black glass bottle. Excellent driver tube in highend audio applications.
I just do not want others to be misinformed about tube performance. Tube amplifier project page after restoring a nice old 1938 sparton model 1568 console radio, i was so impressed with the quality of the sound that i started looking into building an amplifier using the same 2a3 output tubes that the big console uses. Vacuum tubes preamplifier, tungsol antique electronic supply. Pr vintage jan rca 6sl7gt vt229 preamp driver tubes, test. As it is effectively in parallel in dc sense with the 120k plate resistor, you will have to calculate the 6sl7 plate current accordingly. Consider the tavish design vintage 6sl7 mmmc vacuum tube. Nov 11, 2019 like anything in audio tube sound is subjective. The 6sl7gt has been a favorite audiophile preamplifier tube for decades, and the vintage 6sl7 phono stage puts it to best use in a modern update of a classic circuit. Groove tubes stubti tube 1 6sl7 to 12ax7 octal to 9pin. Many vacuum tube phono preamplifiers are designed using the 12ax7 and the 6sl7. Early versions made in the 1940s have a grayblack coating inside the. Hi end phono preamplifier soon available in kit or assemblednov 27 st, 2008.
Sometimes the tube is listed by the industrial number of 6198, some military types list both numbers on the tube, and yet some dont use the industrial number. Matched pair psvane uk6sn7 hifi series vacuum tubes. The tungsol 6sl7 name and trademark have been acquired by the new sensor corporation. However, we are still currently accepting and shipping online orders, email, and phone inquiries. Ibm engineer designs and handbuilds affordable tube audio gear. It shares the same octal base and pinout with the 6sn7. Favorite tubes of any era are small signal pentodes like 6au6, crazy gain in a single stage with pretty good tone, but the circuit has to be designed carefully or they sound. Searching for the right version of a tube for use in the input or driver stage of an. The evolution of a constant glow in high fidelitythe hifi tunes. However, a complicating factor in all this, too, is in a b15, new 6sl7s sound not as ballsy and a little on the meh side compared to old ones, and i only use nos in my b15n for that reason, and im sure thats why the heritage b15 came with nos 6sl7s. I have used the 6sl7 extensibly but my favorite isnt the short bottle it is the sylvania from 1952 and 53 so though i have used many, i dont have any real helpful advice. It was with the 6sn7 that tube technology took a big step forward into the. Its not your grandfathers phono stage it offers highend sound and performance, and exceptional value. It has a brown micanol base and the triode sections are factory matched.
Jun 24, 2012 i love the rich tone of the octal tubes like the 6sl7 over that of the 9pin tubes as the 12ax7. These are high gain tubes but high internal resistance so it is necessary to have 3 tubes on the signal path to reduce output impedance or use circuit topologies like srpp totem pole. Hi rachel, i just thought i would drop you a note having put the 6sl7 z tubes into my monobloc amps. For instance, most such octal amps lean toward plate resistors of 220k instead of the 12ax7 standard of 100k. The tubes were packed extremely well, and everything is just as described on your site. These high quality components are brand new and consist of triad filter choke, hammond filament. Amplifier was designed utilizing four tubes, one 6sl7 input can be substituted with 5691 and two 2a3 output can be substituted with 45 and 15y3 rectifier. I have never heard bass like that from any amp, never mind a valve amp. No doubt many would actually prefer the sound from this design over the hybrid alternatives, as the sound would seem riper, fuller, and warmer.
Shuguang have done it again with this treasure series select version of the 6sl7. This site is protected by trustwaves trusted commerce program. You could also post on the tube asylum on audio asylum. Feb 17, 2011 typically, the value of rfb should be about 4 to 5 times the resistance of the 6sl7 plate resistor. For sale a nos nib pair of ge 5691 6sl7 10,000 hour preamplifier tubesthe red base tubes are known as the best 6sl7 tube variant and are rated for 10,000 hours you cant beat that and they sound fantasticthis is a same date code pair with the original boxestubes tested on my stark 966 mutual. The 5692 is a commercial premium version of the type 6sn7 tube.
Hi end phono preamplifier soon available in kit or assembled. Various brands available but all are made by rca with red base. These nos rca red base 5691 either jan or commercial version are an excellent drop in replacement for any 6sl7 tube type. Although theyve been going up in the last couple of years. It is, in the proper circuit, a wonderful sounding tube, and audiophiles would do well to try the nos vintage 6sl7 tubes before buying anything currently made.