Cv181 tube data book

Buy shuguang treasure cv181 z vacuum tube matched pair replace cv181 cv181 t 6sn7. I prefer the shuguang cv181z in everything ive tried so far. Having grant fidelity handle all customer service and sales for the west is the icing on the cake. 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. Ecc32cv181 mullard 1950s very wellbalanced tube from top to bottom. Psvane cv181tii aka 6sn7 pair or single, select low.

Buy russian 6c33cb vacuum tubes online, in stock and ready to ship. Matched pair psvane cv181t mark ii vacuum tube new. If you must have the gift box, please communicate with us via email and extra shipping charges. Cv181z shuguang treasure premium grade matched pair premium grade matched pair this tube is a true 6sn7 equivalent and y. This runs the tube at full rated plate voltage, and plots the curves at 10 different grid bias levels. Psvane mk2 tseries cv181t 6sn7, premium grade, matched. Buying request hub makes it simple, with just a few steps. Buy matched pair psvane cv181 t mark ii vacuum tube new premium grade treasure tube. Each triode has a raw amplification factor of 20 at a moderately low plate resistance of 7700 ohms. This is a perfectly matched pair of nos mullard ecc32 cv181 brown base tubes from the 1950ies. Cv181z shuguang treasure premium grade single tube. I had 2 different psvane type iis fail within a month. From the base to the tube top, cv181t is about 3 34. Cv181 z shuguang treasure premium grade matched pair premium grade matched pair this tube is a true 6sn7 equivalent and y.

The psvane cv181t are taller and more bulbous as even the horizontally placed tungsol shows off clearly. Cheap 6sn7 datasheet, find 6sn7 datasheet deals on line at. Ecc32 cv181 mullard 1950s very wellbalanced tube from top to bottom. Here for sale a quad 4 tubes of ecc32 cv181 tubes made by mullard in britain around 50s, superb tubes among 6sn7 family, ranked in top 5 most desired 6sn7 tubes ever produced in the world till n. Out of the hundreds we have sold, the good quality ones a grade never have any one fail to now except occasional shipping related damage, which is replaced right away. Psvane cv181tii aka 6sn7 pair or single, select low noise. This ls100 of an audiocircle owner with shuguangs black treasure cv 181 shows white rather than gold bases. The kt88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. Sort by featured best selling alphabetically, az alphabetically, za price, low to high price, high to low date, new to old date, old to new. It also has very good bass resolution, but bass is not exteremly deep due to higher plate resistance woo audio wa6 modded apex peak single tube hybrid headphone amppreamp liquid glass headphone amp by cavalli audio audio aero capitole. It was a commonly used tube from the early 1940s into the late 1950s. The new valve tube for those who skipped to the conclusion on the block is the shuguang treasure series cv181. The most accurate method to test tubes, the curve plots can actually be compared to the printed examples for each tube type that appear in the manufacturer technical data sheets and books.

Get the best deals on radio communication tubes when you shop the largest online selection at. The uk6sn7 is being marketed as a mid priced alternative to the generic tubes supplied with many tube amplifiers. In addition to the data i have scanned and posted, if youre looking for data on a particular tube you should visit tsdl on. Psvane cv181 tii aka 6sn7 pair or single, select low noise all our cv181 tii are selected ultra high grade for low noise in preamp phono stage application. Matched pair psvane uk6sn7 hifi series vacuum tubes. Its simply additional feedback from listeners who roll valves extensively. Shuguang brand 6n8p military j level vacuum tube vaive instead of 6h8c ecc32 cv181 6sn7 b65 made in 1960s for hifi hiend amplifier audio senior player headphone proamp fever acoustic diy lab 1pc. Shuguang black treasure cv181z audiogon discussion forum. Audio asylum tubes asylum questions about tubes and gear that glows.

Click here for help on how to enter cyrillic characters if you dont have a keyboard which supports them. So i got the psvane cv181 t mark ii to replace the stock shuguang we6sn7, which i do really, really like, but i want even more. Buy matched pair psvane cv181t mark ii vacuum tube new premium grade treasure tube. Find the cheap 6sn7 datasheet, find the best 6sn7 datasheet deals, sourcing the right 6sn7 datasheet supplier can be timeconsuming and difficult. I bought a couple of the shuguang treasure cv181 z tubes for my modwright ls100 and one went microphonic in about 3 weeks. Ecc32cv181 mullard specifications not an exact 6sn7gt substitute 6. Book depository books with free delivery worldwide. Rca vintage tube for sale online hifi audio, hifi speakers, valve amplifier, vintage. The amp was singing beautifully, and i might have left well enough alone had i not suspected that detail and. Tube cv 181 or rohre cv181 id15639, double triode, octal int.

Since the tube was so popular, it got used in many amps and preamps regardless if it was really suitable or not. I was able to get a refund and put the stock tubes back in. Description, double triode with separate cathodes for use as a paraphase a. This is a perfectly matched pair of nos mullard ecc32 cv181 tubes from the 1950ies. The psvane cv181 t tubes are direct replacement to standard 6sn7 tubes of all make. Most listeners would say they had more detail, but to my ears, that also means brighter.

Foreign tube roll chart supplement in book form from hickok contains tubes not on roll chart about 15. Tubes free delivery possible on eligible purchases. Tube cv 187 or rohre cv187 id17537, halfwave vacuum rectifier, europe 4pin b4 eu a, e, 4a 1914 and powersupply shown. With updated equipment and quality control improvements they are now one of the worlds largest tube manufactures supplying many of the oem amplifier manufacturers and most of the boutique tube brands from around the world.

Psvane cv181tmii2 6sn7gt gemachtes paar tube amp doctor. Mullard ecc32 cv181 6sn7 tubes reduced tubes audiogon. Chord qutest dac to cayin ha300 dht 300b amp to audeze lcd3 fazor. Buy 2pcs shuguang natural sound cv181t matched pair vacuum tubes replace 6sn7 6n8p. Theshuguang treasure as a result of shuguangs 50year of expertise in vacuum valve design and production. I then tested them on my own amplitrex tube tester, and, folks, these are the most closely matched tubes i have ever bought. Please note this tube has a curved glass shape with the widest part of the glass at 44. Complete data of the tube can be found in the general electric data sheet. Up for sale will be one matched pair 2pcs of shuguang treasure vacuum tubes cv181 z substitution of cv181 cv181 t 6sn7, packed in environmental protection box as picture shown, product of shuguang electron group. Tube amp capacitors or guitar amp capacitors, our selection currently covers the most commonly used types in vacuum tube amplifier applications.

Key in the code for the valve tube you wish to search for and click the query button. Shuguang treasures cv181z valve similar, but not identical to. Here we have the best of the psvane series, the mk2 tseries version of the popular double triode that features in many single ended amps. Tubes will be well packed in canada with bubble wrap for safe shipping and handling.

Before i go back to ia to buy replacements, are there any other alternatives for reasonable money that will actually be an improvement over the stock valves that i should consider. The gold coated base is slightly smaller pins layout is the same than the treasure cv181z which has white ceramic base, but glass shape and size remain the same at 2. The 6sn7 tube is a dualtriode preamp tube with medium gain. Cv181 z shuguang treasure this tube is a true 6sn7 equivalent and you can use it in place of 6sn7 tubes of various brands. Though the psvane cv181 tii is a lively tube, extended in both frequency extremes, i too felt it 4. Cv181z shuguang treasure this tube is a true 6sn7 equivalent and you can use it in place of 6sn7 tubes of various brands. In a high resolution system, especially of the lowtono negativefeedback persuasion, these shuguang globe 6sn7se bottles are the state of the newwaveofvalveproduction nwovp. In general, the kt88 tube has a magical midrange similar to the smaller el34 tube, but with low and high end extremes that reach much further. This series is the important product after the shuguang treasure series very famous black glass valves. Buy matched pair psvane cv181t mark ii vacuum tube new premium grade treasure tube at amazon uk. 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. The construction uses a glass pinch and the two separate electrode structures are visible through the envelope. Great middetail and very romantic sound with zero harshness, not grainy.

It is based on shuguang treasure serie, and absorbing the advantages of the global outstanding tube, gone through upgrading and renovation for three years. Mind you, this isnt meant as any blanket endorsement for the brand. The double triode is found in amplifiers and instrumentation. I recently bought a used tube ampvac phi 110 and the tubes that came.

Grant fidelity is the first international distributor selling shuguang treasure tubes since jan 2009. This runs the tube at full rated plate and screen voltage, and plots the curves at 10 different grid bias levels. On one side were chinese and foreign audiophiles and investors, on the other the huge governmentcontrolled shuguang operation. Your reliance on this data in no way implies any responsibility on the part of, in regards to your ability to buy or sell products at any price you choose. The shuguang cv181 improves on the sylvania for all midrange and vocal qualities, improves in the 4 dimensions of prat, and gains extra tinglefactor. Matched pair psvane cv181t mark ii vacuum tube new premium. Delivered to the norwegian army, and kept in storage for all these years. This valve was popular in the wwii era, and is of pinch construction within a glass envelope. Ecc32 cv181 mullard specifications not an exact 6sn7gt substitute 6. Shuguang treasure cv181z vacuum tube matched pair replace. I will be ordering more as great 6sn7 are hard to come by. It seems as though this companys sonic quality might be quite consistent from tube type to tube type. However compared to other 6sn7 tubes, the shuguang treasure cv181z tube has a much larger st style bottle. The simplest vacuum tube, the diode, contains only two elements.

The cv181 double triode is of the low impedance type and takes a large heater power for such a valve. Vplate300v, iplate50ma, vfilcathode50v, pwatts5 typical operation. This ls100 of an audiocircle owner with shuguangs black treasure cv 181. In some quarters referred to a as a bigtone tube and routinely used as a 300b driver, i think of the 6sn7 as a deliberate textural booster. But then id stay altogether clear of this type instead of fight nature by cheating with a lesser specimen only to deliberately undermine these particular qualities. If you have never used this facility before, click the help link on the left for detailed instructions. Fidelityshuguang also offer a 6sn7 substitute called the cv181, this is. I found the t series to be just a tad to bright for my tastes. Grant fidelity is the first international distributor selling shuguang treasure tubes since jan. These meaty beasts could deliver up to 70 watts at 2.

Below are some pics of the shuguang treasures cv181, sound big and detailed on my system great tube at a great price considering it beat some nos vt231. I have several pairs of the shuguang cv181z, the shuguang cv181t and the psvane cv181tii. The tube base is of regular diameter of a typical 6sn7 base so it should fit chassis opening fine. If your 6sn7s are on show and there is space for them, there is every reason, sonic and aesthetic, to install the shuguang globe 6sn7se. Please let us know if your el34s from gf came with amplitrex data.

Just recieved two pairs of cv181 z a tubes from grant fidelity. Sonically the tseries is considered modern refined with more top end extension while the treasure zseries were originally developed to after the new old stock tube laidback sound. Great finish and construction from the gold pins to ceramic base and the mica plates to the hpcc used. Being probably the only tube seller to have yet visited the psvane factory in southern china, grant fidelity of canada ought to have the story.

You can key in cyrillic characters to perform the search too. The importers, grant fidelity, were concerned that this might affect potential customers who didnt bother to check whether the cv181z is a cv181 or a 6sn7 and thus reject it on the grounds that their heater supply current transformer secondary might overheat. According to them the brand began as a collaboration. Look for high transconductance, greater than 6500 ohms. After that time it was replaced by modern tubes such as 12au7 and 6cg7 designs that were physically smaller and less prone to noise and microphonics due to vibration. Tube ecc 32 or rohre ecc32 id15828, double triode, octal int.

They came in nice boxes, way over packed, and quick. Don is now a devotee of the shuguang cv181 tubes and i agree 100%they are far better than any nos tube out there other than a few of the. Please check your amp tube distance to make sure they fit side by side if your amp happen to have tubes placed very closely to each other. Shuguang has been around since 1958 producing vacuum tubes and have made huge strides in quality in the past number of years. Herein you will find a collection of vintage engineering texts, vacuum tube datasheets, and other obsolete information, presented free of charge and without annoying advertisements. Electronic books, file format, vacuum tube, ham radio, book and magazine.