12AX7 tubes listed here can be used where 12AX7, 12AX7A, ECC83 or 7025 types are called for.
12AX7 Selection Guide
Not sure which one? Check out our comprehensive 12AX7 Guide.
7025 is a 12AX7
Looking for 7025? 7025 was a number given to audio grade 12AX7 in the old days. All 12AX7/ECC83 tubes we carry are audio grade, and are direct drop-in replacement for the 7025.
Matched triodes and pairs
We offer triode matched tubes, and we also match two triode matched tubes to make a perfectly matched pair.
Low noise screening
We also offer low noise screening. Please refer to our matching and noise screening
options.
Looking for 5751? Please see 5751 section.
12AX7EH has a good amount of gain with lower microphonics. It does well in guitar amp application with good bite with definition.
For phase inverters, use triode matched.
This is a premium version of 12AX7EH. Gold plated pins assure better contact, a definite plus for gigging musicians and vintage HiFi amp users alike. Quiet, smooth and excellent for use in both HiFi and guitar amps.
Sovtek's 12AX7LPS is the best choice for HiFi Audio with excellent sonics. It has a long ribbed plate derived from Siemens design, with a filament that works with both AC and DC supply.
The OEM workhorse tube used by major amp manufacturers, with warm round tone. Very low in microphonics, and is excellent for use in guitar amps. You can hit it with a stick and it'll barely bat an eye. This is very important for combo amps, or for high volume application.
Price is for a matched pair of 12AX7B Silver Doragon. These are higher gain version of 12AX7C9 with shiny silver anode. It has a bit more bite than C9 in guitar amps.
Please note that recent version of 12AX7B comes with grey coating on anode.
Derived from rare Telefunken design, it gives out nice, rich harmonics in guitar amps. It also does very well on audiophile or recording application. It's quiet and low in microphonics due to short plate design and thick glass.
This is a unique and original 12AX7 from Groove Tubes. They closely re-created the famous Mullard 12AX7. In a guitar amp, 12AX7M delivers rich harmonics when pushed, and also provides good clean tone headroom. 12AX7M is also gaining a lot of following in the HiFi for its smoothness and balance.
12AX7C9 is made by Shuguang factory in China. It has higher gain than any other 12AX7 tubes produced today, and has tight tolerance and consistent quality. Excellent in guitar amps if you want great deal of distortion.
Tubes are either unlabeled or marked as 12AX7A, and shipped in a white box.
Factory selected, gold pin version of Ei 12AX7. Just like the Ei 12AX7 Silver Bullet, these tubes can be microphonic for use in guitar combo amps. But they offer extended clear highs and sweet mids that are unrivaled in HiFi audio applications.
There are silver and grey plate versions. Picture shows grey plate version.
Superb sounding 12AX7 that follows in the footsteps of flat plate Telefunken design. Ei 12AX7 excels in Audiophile application at an excellent price point. Note that some Silver Bullets will be marked ECC83 instead of 12AX7.
Excellent sounding 12AX7 from SED (ex-Svetlana) people with Winged-C logo. The filaments are not spiraled, which means it may pick up too much hum in amps with AC filament circuit. Most recent audio amps have DC filament so this is not a problem.
Out of stock
12AX7 / ECC83 / 7025 NOS OFFERINGS
The following is NOS and vintage tubes in this category.
Due to the scarcity of some items, inventory will change constantly, so please check back often.
Be sure to check out our NOS terms.
The photos of NOS tubes are representative samples and actual NOS tube shipped may vary. "Various" means we have multiple brands in stock.
12AX7 tubes listed here can be used where 12AX7, 12AX7A, ECC83 or 7025 types are called for.
