GE Long Plate 12AX7

Price:

$70.00

Rating:

( 3 product reviews )

Product Description

GE 12AX7 - All right class....listen up. There was a large flat plate/horizontal rib GE that was made in the late 50's and early 60's. You most likely have never seen this tube because they are rare. This particular tube was made in 1963, and come in military boxes. It is a great sounding tube, with wonderful air and detail. Helically-wound filaments for low hum and is quieter and more consistent than the ones they had partially assembled overseas later. If you want one of the better sounding 12AX7's ever made and don't want to pony up the big bucks for the Tele's and so on, this is it!

Platinum grade - The best of the best. Lowest noise and microphony with the tightest triode balance we have available. This is typically 10% or tighter, but may be higher depending on available stock.

Gold grade - Low noise and microphonics with a triode balance typically between 15% and 20%, but may be higher depending on available stock.

Driver grade - Lowest noise but not the lowest in microphony. Triode balance will be similar to Gold grade.
This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player.

If you have a preamp or phonostage, you need at least Gold grade.

Click here for a more in depth discussion on how we grade tubes.

Product Reviews

Another fantastic Tube from Upscale,

Posted by Barry French from the UK.

Great smooth detailed tube, very good at frequency extremes, I am using the Cryo version Platinum type in place of EH Tubes, absolutely no comparison, no glare, great control , better holographic dimension to the sound, not cheap but worth every penny/cent. Some 12AX7 types do one thing or another a tiny bit better but none that I have found do everything as well as these babies. There are probably better out there, but I haven't found them yet. This tube will probably stop me looking, it really is that good. These guys provide a superb service, that's why I buy here from the UK, it's worth the extra cost for me.
Yummy!

Posted by Zachary Auld

This is a very tastey tube for a guitar amp input tube. Us guitar players crave the gain and harmonic's. This tube delivers everything i would expect to hear. Sparkleing high's, Full warm bass, detailed and lively mids, Sweet gain,and my favorite, harmonic overtones that are upfront and singing along with every note i play. Awesome find. I LIKEITALOT. As allways it came with closely matched sections. Thanks again for another gem. Happy Zach!!
vintage tubes STILL set the performance standard

Posted by TL

Relatively new to the whole 'tube' experience, but wow, what a difference from even good solid-state equipment. Learing the ins and outs of tubes, and a pair of these were already in my Rogue amp when purchased used. Great sound--unbelieveable, really. Given I didn't know how many hours these GE's had on them, or left in them, tried the EH golds--brighter, thinner sound with a harder edge but similar soundstage--and the re-pro Mullards--smaller, curiously flattened soundstage with a very soft and dark presentation. I don't know why vintage is so much better, but whether the 12ax7's, or the vintage Sylvania 6sn7 gtb's I'd gotten for the matching Rogue preamp to replace newer production tubes, they are literally night and day better, at least in my limited experience, than even well-reviewed modern production tubes.

CRYOGENICALLY TREATED VACUUM TUBES. DONE TO UPSCALE AUDIO STANDARDS!

Most of you already know that Upscale Audio is the premier destination for expertise and availability of vacuum tubes for high-end audio equipment. So when we offer servies and options, you can be guaranteed that it represents a significant investment of research and capital, and that the end result will greatly enhance your listening experience.

Upscale has contracted with the foremost company involved in this technology, 300 Below, to treat our most popular tubes. Other tubes will be added as time allows, but it is a time consuming proccess. Our intention is to have most stocks Cryogenically treated before we even test them.

Of course, your first question is – and should be – why? In a nutshell, reducing an object’s temperature to -300ºF re-arranges its molecular structure, creating greater uniformity that results in longer life and better performance than when the product was initially designed.With vacuum tubes, this process has a profound impact on a tube’s ability to endure thermal shock. Therefore, tubes can last longer and their sound can been enhanced in ways that are simply exquisite.

After thoughtful and thorough research, Upscale Audio chose 300 Below because of their extensive experience in working with musical instruments as well as auto racing, metal tooling, and high-end sporting goods from rifle barrels to golf clubs. Expect nothing but the best from Upscale Audio.

Our charge for Cryogenically treating tubes is a fraction of what others charge, though we use the premier company. Count on Upscale to do the best job and not price gouge . Also available is cryogenic treatment for cables, along with our well-known Nordost Vidar cable treatment system. Call for details. Pricing is listed on each tube and cable page.

Warranty Information

Vacuum tubes are warranted for 90 days against defects, except in cases of abuse, and replaced with like-item only.

Tubes being sent in for warranty must have a return authorization number from Upscale Audio. This RA number must be written on the outside of the box. Please also include a note in the box that has your name and telephone number, and please explain the issues with the tube. If this information is missing it will delay the shipment of your replacement tube.
Vacuum tubes being sent to Upscale Audio for warranty replacement must be shipped in a box with appropriate packaging to keep them from being damaged. Vacuum tubes returned to Upscale Audio using inadequate packing will have a voided warranty and will be refused at the customer's expense.

Exceptions to our warranty policy are as follows:

Upscale Audio reserves the right to refuse warranty at our disgretion based on the equipment being re-tubed. You will be notified of any change prior to your order being processed.
Using a tube in an application in which it was not meant to be used. If your amp calls for a 6550, and you decide you want to plug in a 6V6GT, Upscale Audio is not liable if the tube fails, and will not honor any warranty in such a situation.

Upscale Audio is not liable for any damage or injury caused by the improper use of its tubes or the use of an incorrect/incompatible tube type. If you are unsure of what tube or tubes your equipment uses, consult the manufacturer before making a purchase. Using an incompatible tube type may cause severe damage to your equipment and will void your tube's warranty.

vacuum tube returns for refund:

Vacuum tubes are electronic parts and are not refundable under any circumstances.