6sl7 tube equivalent


Same comment as 6SN7 type. Substitutes: 6BQ5, 6P15, 6267, 7189, 7189A, 7320, E84L, EL84L, N709, Z729, 6BQ5WA, EL84M I have had little use for these.


Are 6SL7 and 6su7 tubes the same?

Shop our great selection of 6SL7 and equivalent tubes. Please note, that while they are electrically and internally the same, 6SU7 and 6SC7 have a different pinout than the 6SL7 and are only SOMETIMES compatible with amplifiers that call for 6SL7. The 6SL7. ECC35 and CV1985 are all exactly the same tube.

What is the difference between the type 6SL7 and type 5691 tube?

The type 5691 Tube is a “premium” version of the type 6SL7. The “premium” qualities of the 5692 include a long-life cathode rated at 10,000 hours along with extra support rods and mica spacers to eliminate microphonics.

How much does it cost to balance a 6SL7?

Each triode of a 6SL7 can be compared both internally (balanced) and to other tubes (matched). Curve tracer internal balancing, or matching of two or more tubes on the curve tracer, adds $10.00 per tube to the cost and is done upon request.

Where to buy Russian 6h9c / 6SL7 audio tubes?

Russian 6H9C / 6SL7 Audio Tubes – www.thetubestore.com Order Russian 6H9C / 6SL7 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Javascript is disabled on your browser. To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser.


What does a 6SL7 tube do?

The 6SL7 has also been used as driver tube for small triodes like the 45 or 71A. With both sections wired in parallel to halve the plate resistance this can work well and offer the possibility to build a simple two stage amplifier.

Can you use a 12AT7 in place of an 12AX7?

Yes, you can use a 12AT7 in place of a 12AX7 without having to worry about any problems. The changes these 2 tubes make in your amplifier will be well worth experimenting with as you search for your sound.

What is the difference between 12AX7 and 12AU7?

The biggest difference between these power tubes is the amount of gain they will provide. The 12AX7 has a gain factor of 100, while the 12AT7 has 60. The 12AU7 has the smallest, at just 20. The lower gain of the 12AT7 and 12AU7 also allows them to have a higher headroom, which can provide a warmer and cleaner sound.

Is 7025 the same as 12AX7?

The ECC83 (12AX7) Valve In ‘theory’ you’ll get a bit lower noise and lower hum with a 7025. Otherwise, they are identical.

What tubes are interchangeable with 12AX7?

Knowledge is power, and knowing an unusual substitute may be a true joy.Small Signal Tubes:12AX7. Substitutes: ECC83, 12AX7A, 12AX7WA, 7025, 5761,6057,6681,7494,7729, 7025#, ECC83#, 6L13, 12DF7, 12DT7, 5751, 7025A, B339, B759, CV4004, E83CC, ECC803, M8137. … 12AU7. … 12AT7. … 6DJ8. … Rectifier Tube:5AR4. … Other Dual Triode Tubes:More items…

Which 12AX7 sounds best?

The best current production 12AX7 tubes for metal are: JJ ECC83S: If you like a darker rhythm sound, this tube can be great for that. They are more warm than bright and pretty aggressive. JJ ECC803S: This version that JJ has released is a more balanced sound.

Can I replace 12AU7 with 12AT7?

The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. In many cases, these tubes are interchangeable and can easily be swapped.

Do preamp tubes affect tone?

More to the point here, though, is the fact that the gain of the first preamp tube—often referred to as a “gain stage”—very directly impacts the tone that you achieve from the amp as a whole.

Can I replace ECC83 with 12AX7?

Some people might worry about whether or not you can substitute the ECC83 for a 12Ax7, and many guitar shops will only carry one brand of preamp tube. If that brand is an ECC83 tube, you might be hesitant to make a purchase, but you needn’t be. The ECC83 tube will perform the same as the 12Ax7.

What is the difference between ECC83 and 12AX7?

They are identical. They only differ in name. Confusing, but there it is! One (12AX7) is the American designator and the other (ECC83) is the British.

How long do 12AX7 tubes last?

about 10,000 hoursSmall signal tubes like a 12AX7 or 6922 will work well on average for about 10,000 hours.

Who makes the best audio tubes?

THE BEST OVERALL STEREO TUBESTelefunken Smooth & Ribbed Plate 12AX7/12AU7.Mullard Long & Short Plate 12AXY/12AU7.Raytheon, RCA JHS Sylvania Black Plate 12AX7/12AU7.Telefunken 6DJ8/E88CC Gold Pin.GE 12AY7/6072A Black Plate.Mullard 6922/6DJ8.Sylvania VT-229/VT-231.KENRAD VT-229/VT-231.

Is an ECC83 the same as a 12AX7?

The ECC83 Valve – also known as the 12AX7. The 12AX7 Valve (or 12AX7 vacuum Tube) is a small preamplifier valve which is identical to the ECC83 – same valve, just a different name. It has two identical triodes both of which have a high voltage gain. It is used in 99% of all guitar amplifiers.

Do preamp tubes affect tone?

More to the point here, though, is the fact that the gain of the first preamp tube—often referred to as a “gain stage”—very directly impacts the tone that you achieve from the amp as a whole.

Is 6SL7. ECC35 the same as CV1985?

The 6SL7. ECC35 and CV1985 are all exactly the same tube.

Is 6SL7 the same as 6SU7?

Please note, that while they are electrically and internally the same, 6SU7 and 6SC7 have a different pinout than the 6SL 7 and are only SOMETIMES compatible with amplifiers that call for 6SL7.

What is a 6SL7 tube?

The 6SL7 is a high-mu twin triode in an octal based glass package. To my knowledge, there were not any metal shell versions made. Each triode section operates as a class-A amplifier. This tube has much higher mu than it’s cousin, the 6SN7. It’s factor is 70, whereas the 6SN7 is only 20, therefore these two tubes are not interchangeable. There is still a good population of hi-fi and musical instrument amps using this tube in the preamp stage out there, and these tubes are still available. The 6SL7 was never as popular as the 6SN7—due to the 6SN7’s widespread use in television chassis design—so this tube does not turn up as often whenever vintage tubes are being sold. 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 today.

Who makes the 6SL7?

New Old Stock Original Box. Medium glass military type, made by Tung Sol. This military/industrial 6SL7 has matched triode elements, and has suddenly become very difficult to find. An excellent sounding step up from standard 6SL7 tubes, well worth the search and higher cost! These rival the sound quality of the expensive 5691 redbase and brownbase tubes. MATCHED PAIRS ARE $190.00 PER PAIR!

What is a VT229?

A true military tube will always be marked “JAN”. They may or may not have listings such as “WGT”, which is mil spec ruggedized; or VT229, which is the military type number of this tube. A common belief is that VT229 tubes are better than JAN or WGT types. Not true! These ARE ALL THE SAME TUBES. They may or may not have brown micanol bases. All have extra support rods and mica, and are very rugged tubes that sound wonderful. The RCA, Sylvania, Ken Rad, and Tung Sol JAN blackbase tubes look much like their civilian counterparts. JAN Sylvania, Tung Sol, GE, and RCA also made versions with brown bases, mostly with short glass envelopes. The JAN Sylvania have a light marbled base, and the plates inside are very short black cylinders. These milspec versions are an endangered species, and stocks may be wiped out when the 5691 series of tubes vanish. Prices are on the way up because of this.

What are RCA tubes made of?

Early versions have an RF shield sprayed on inside the glass (greyglass), and then since about 1952 were made of clearglass. RCA used the famous blackplates and a bottom getter, as did early Sylvania. In the 1950s, Sylvania went to a top getter, called chrome tops, and used both a short and a tall boy style. General Electric used a short glass envelope, bright nickel plates, and a side mounted getter. They also made tubes for other brands. Whenever you see the bright plates, even in tall boy glass with bottom getters they were most likely made by GE. Ken Rad tubes are just like GE. Early Tung Sol tubes looked like RCA, but later went to small grey rectangular plates that looked like tiny 6SN7 GE plates. Tubes made after 1975 used the coin or wafer base. These are all great vintage tubes.

Is a 5691 RCA tube good?

New Old Stock original Box. This 5691 is a very good, very rare dual trio de. These appear to be RCA military stock tubes with flat plates and extra support rods, with black bases, just like the RCA redbase tubes. The brownbase have short oval plates. 10,000 hr. life, low microphonics. Built like a tank, awesome tube! These are great matched pairs, get a real 5691 at a savings! SINGLE TUBES ARE JUST $30.00.

Is the Redbase 5691 a good vintage?

New Old Stock original box. This 1960s vintage redbase is a very good, very rare dual triode. Rugged 4 support posts, 10,000 hr. life, low microphonics. The real vintage RCA red full octal base deal, built like a tank, awesome tube! These are great matched pairs or available as singles! The current stock are all Genuine RCA made, with CBS Industrial labels. RCA was the only manufacturer of the redbase 5691, and this tube was made both for the military and industrial users. SINGLE TUBES ARE $90.00 EACH!

Is the 6SL7 plug and play compatible?

The Holland made versions are similar in size to the “tall boy” USA types. These usually have high-mounted cylindrical plates, and brown micanol bases. These are sweet and rare versions of the 6SL7, and are plug and play compatible with any 6SL7 or 5691 type tube. Some say they have all the best attributes of the 5691, with better richness and vocal clarity. Very hard to find in the USA, and worth grabbing whenever you can find them!


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