With dimensions of 227 x 247 x 172 mm and a weight of only 2.7 kg, it is a highly portable amp for practicing at home but also for playing outdoors. Here is a list of all 9-pin / Noval tubes and 8-pin / Octal tubes with compatible pinouts. Always check for the correct vacuum tube in your Manufacturer’s User Manual.. Fitting the wrong tubes can be dangerous, … The 12AT7 is a miniature, high-mu twin triode designed for use as a grounded-grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approx 300MHz. You can replace 12AY7 with 12AU7, 12AY7, 12AX7 to get 40, 51 or 56dB gain. Some tubes like the JJ ECC83S are nice and balanced, going from a little drive to all out grind. Its rugged design and rich harmonics make this tube an obvious choice for musicians who need a reliable and high quality tube at a reasonable price. Was: New Matched Quad (4 pcs) Electro-Harmonix 6CA4 EZ81 Vacuum Tubes The most reliabile and best sounding small rectifier on the market. The 12AU7 is a miniature medium-mu twin triode. The balanced tone of the JJ 12AX7 works well in any amp. I tried about my whole box of tubes - Mullards, Amperex, Sylvania, RCA, and some moderns and found V1 in this amp to only like certain current production tubes - namely the JJ, 12ax7EH, a Silver Dragon 12ax7B and a couple of Chelmsford 12ax7's. The JJ Electronic 12AX7 / ECC83 has quickly become a modern classic in preamp tubes. $19.99 $ 19. This is an excellent tube to improve the sound of bland and thin sounding amplifiers. Below are some examples of features included with these tubes: Vintage: These tubes are highly collectible among hobbyists. Compatible driver tubes include ECC83, ECC803S, 12BZ7, 12AD7, 5751, 7025, 7058, B339, and B759. JJ Electronics Amplifier Tube – T-12AX7-S-JJ (Editor’s Choice) JJ Electronics Amplifier Tube … Compatible With Audio Technica , Crosley , Jensen , Pioneer , 1byone and More Turntables. The preamp tube takes the incoming guitar signal and amplifies it & distorts it if desired and feeds it into the power amp section. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. Free postage. 12AX7 Family Tube Substitution The 12AX7 family of dual-triode preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. Other brands, including those costing $5,000 or more like Mal Valve, will use larger output tubes, then use a voltage divider network to drop the power down to an acceptable level for headphones. If you encounter a similar issue, please check those tips, which have covered most of conditions. The Russian 6Pi14Pi is another version of the 6P14P and Chinese 6P14. Preamp, Driver tubes, Vacuum tubes, Capacitors, Nixie Tubes, Indicators, VFD display, LED, Sockets. I have read that the Tung Sol 12ax7 is a finicky tube that will die fairly quickly in the cathode follower position which I found out first hand before reading that. A great deal! Seven notch plate edges, vintage sounding compression or sag when used in a guitar amp. Compatible with a Line 6 GT10 Relay guitar wireless system and able to be run on batteries, this could be a take-anywhere option. $45.69 $ 45. Although the Ecc83 is the european designation for the 12Ax7, there are subtile sound differences between a true 83 and the 12ax7, plus The Ecc83's are capable of handling more current that most 12ax7. " In many cases, these tubes are interchangeable and can easily be swapped. Find more Consumer Electronics, Home Audio & Video and Amplifier products. BTW, 12AU7's do sound great, but 12AT7's are the sweet spot with the TA-20, IMHO. For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7. This tube has a mu factor of 60, as compared to the higher gain 12AX7 with a factor of 100, and the 12AU7, with a mu of only 20. The Tube & Amp Analyst is a fast, easy to use tester for the 6L6GC, 6V6GT and EL34 compatible power tubes, 12AX7 type preamp tubes and rectifiers used in guitar, bass and compatible audio amplifiers. From left: A 12AX7 (gain factor 100), 12AT7 (gain factor 60), and 12AY7 (gain factor 40). This 12AT/6201 preamp vacuum tube from Tung-Sol comes with short, robust plates that go a long way in reducing din and microphony. The 12AU7 is the last tube on this list and it has the lowest Gain, with an amplification factor of 20. Many industrial, military or otherwise professional tubes were also produced. 12AX7-compatible tubes Many other twin-triode tubes are pin-compatible with the 12AX7. My Review: After testing … Things not equal to the same thing won’t work. The regular THR10II is identical minus the wireless capability, and retails for about 80 bucks cheaper. 59. Ending 16 Jan at 2:01PM GMT 9d 15h. These are all pin compatible with one another, the only differences being the gain factor of each tube. Originally, the 12AX7 / ECC83 vacuum tube was introduced to be a superior option for lower noise and microphonics over the 6SL7 tube that was commonly used in the 1940s. In some modern Fender amps substituting a 12AT7 or 12AY7 for the V1 12AX7 can blow the plate resistor, because the lower-gain valves draw slightly more current - but that's because Fender use a 1/2W resistor here. 2 x Tung-Sol 6L6GC-STR (+$52.40) + $52.40. Western Electric 12AX7 from WE 420a plus Adaptor for sale. The ’12AU7′ Tube. That’s why it’s used in so many guitar amps. This tube can be tried in later Marshall amplifiers in the first gain position, where the owner of these amps would like to drop the background noise and lower the gain level to plexi or early 70s vintage gain These tube are reported to sound very good, although I have not heard them. They are pin compatible, but the tubes operating points are different. It looks like I've made some whack decisions when building it: The 12AY7/6072 and 5751 tubes have lower gain levels compared to a 12AX7. Premium Selected ECC83 / 12AX7 Preamp Vacuum Tube, JJ / Tesla Valve. It has a Mesa tube but I heard the amp could sound even better as the Mesa 12ax7's aren't that great. This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices. The ’12AX7′ Tube. There is a wealth of information available about your Hammond and Leslie products, and you can find it all here, free of charge, including Owners Manuals and Reference Guides. Class-A 12AX7 MM Phono Stage (47dB, compatible to 40/51/56dB) Inside 12A7 phono Back of 12AX7 phono Frequency response of 12AX7 Phono Distortion measurement of 12AX7 phono Price includes four tubes and capacitors upgrade. Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - JAN 5654W Platinum Grade Pair 4.8 out of 5 stars 1,376 1 offer from $24.79 The 12AT7 is a miniature, high-mu twin triode designed for use as a grounded-grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approx 300MHz. Tung-Sol 12AT7 6201 Preamp Tube (Editor’s Choice) If you’re shopping for a versatile yet supremely affordable 12AT7 preamp tube, then the Tung-Sol 12AT7 is your best bet. eBays selection of Brimar 12AX7 vacuum tubes has a number of practical features for you to take advantage of. Below is the latest run from 10/17 of the JJ 803S tube. The EL84, EL34, or 6L6 tubes are power tubes and they are different in many ways. 7. Rock and Roll IS a contact sport!" All my vintage tubes were noisy but only in this amp's V1. Compatible OS(s): Windows 64b, macOS. From left: A 12AX7 (gain factor 100), 12AT7 (gain factor 60), and 12AY7 (gain factor 40). Widely used across guitar amplifiers and hi-fi applications. A decent reproduction of the old Mullard 7 notch copper lined plate version. But you donât need record through a huge Ampeg stack to get studio quality tone. Not all are suited for the job. Photo by Andy Ellis. Wholesale & retail trade. The amplification factor, or mu, gives you the potential output or gain of the tube. Supporting 6N2/12AX7 tubes, which offers many replaceable tubes for you like 6H2,6H2n (For 6N2 type) and 12AX7B,6N4(9PIN),ECC83,5751 (For 12AX7 type). It’s easy to generate distortion. It has three 6eu7 tubes in it. This tube has a well balanced colorful tone with strongly defined lows mids and smoot… Comment. The Svetlana 12AX7 is a premium 12AX7 tube from Russia. Parallel 12AX7-driven tube preamps lets you blend in tube saturation to warm up your tone Switchable 48V phantom power provides compatibility with any kind of microphone Concentric hi-Z instrument inputs on both channels allow you to directly plug in your guitar or bass In stock £13.50 Buy Now; ECC83/ 12AX7A-TUNG SOL RU Tung-Sol Russia The Russian Tung sol ECC83/12AX7 is a remake of the classic designed 12AX7 from the early 1960s. A.F. CAUTION: Some amps designed around these Russian tubes make use of pin #1, with a voltage on that pin. You can buy super heavy-duty 6V6s nowadays, though. Known for their smooth drive and clarity, these tubes are praised by both guitar players and HiFi users alike. $40.00: out of stock Buy it used, but checked, if necessary. It sounds and looks great. View All Close. Prices are all over the board on these. (V2) - 1 x Shuguang 12AX7B (+$14.50) Based on ECC83 and EL34 tubes, its analog time model design allows to reduce the delay of the signal processing and thus give a ⦠On the bottom of the description, there is a few Q&A for buyers who might meet the humming problem. SSA examines, analyzes all 12ax7 Tube of 2021. The 12AX7 vacuum tube was developed by RCA to replace a tube called the 6SL7. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. 09-05-2006, 09:33 AM. Is there a cheaper 6EU7 tube that can be substituted? 12AX7-compatible tubes Many other twin-triode tubes are pin-compatible with the 12AX7. My Review: The Roland Micro Cube is the real deal when it comes to mini amps. It is what is called a ‘double triode’. I don't remember what schematic I used to make it and I wasn't skilled with electronics then but surprisingly sound does come out of it, and I really like the distortion when the tube is overdriven.. A Chinese version of the 12AX7-C. Great for Marshalls and Fenders. Hammond organs certainly can contain 12AX7 tubes. Where every little thing is covered? This amp has a 1W resistor, so it should be OK. "Take these three items, some WD-40, a vise grip, and a roll of duct tape. This is actually two valves in one glass envelope. This represents a huge gain factor change from 100 on the 12AX7 to 60 on the 12AT7. 2pcs Amptata 9pin Tube Saver ECC83 ECC82 ECC81 EL84 6BQ5 12AX7 12AU7 12AT7 Vacuum Tube Amplifier Protect Tube Pin Socket Gold Plated. Known for their smooth drive and clarity, these tubes are praised by both guitar players and HiFi users alike. Jumper Pins 1 & 8 together. This tube has a mu factor of 60, as compared to the higher gain 12AX7 with a factor of 100, and the 12AU7, with a mu of only 20. The V2,V3 preamp tubes are Tung-sol 12AU7 and the power tubes are Tung-sol EL34B. Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. £14.89. 6N1P-EV / 6DJ8 / ECC88 / 6922 Voskhod tube $ 4.00. £1.00. 643 sold. Gold-plated. These tubes are nice if you are looking to have a less gain in the preamp. The average actual gain … Is it fine to put a 6922 tube into a pre-amp that is using 12ax7 tube, the shape is the same, same amount of pins, so my question is can I? The … Compatible Tubes . This last run was in line with the previous run with perhaps a little more spread (read a little less consistency) in some areas. 12AX7-compatible tubes Many other twin-triode tubes are pin-compatible with the 12AX7. 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Aware of an adaptor you could use to make a 12AX7 with 5751,,. Nowadays 12ax7 compatible tubes are Tung-Sol 12AU7 and the power amp section adaptation difficult best tube Stereo Handpicked.