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OUR PART #: GT-12AT7 MFR #: 5550112400
This tube is used widely in most of the US-made amps and, in particular, the Fender amps. ...Read more
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This tube is used widely in most of the US-made amps and, in particular, the Fender amps. Fender amps with reverb use two 12AT7s - one for the reverb drive stage, and one used as a phase inverter to drive the push/pull output stage.
The 12AT7s make-up is very similar to the 12AX7 and can be substituted for a 12AX7 in a pinch, although it won't sound very good. Some players do prefer to use the 12AT7 in the driver stage in a Marshall for a cleaner, brighter tone. (The driver or phase inverter is the 12AX7 located nearest the power tubes.)
The 12AT7 is rarely used in a tone-generating stage, but rather in function stages, so our GT-12AT7 is selected for durability. Our tube will some times bear the number 6201 as well as 12AT7. This is a special (and more expensive) production run with a rugged construction. The GT-12AT7 is tested under extreme listening conditions and guaranteed to be free of excess noise and microphonic ring.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
If you’re not confident in your diagnosis it may be best to take your item to a qualified technician.
If you’re concerned about the duration of a spare part warranty please contact us before placing your order. Be aware that if you install a part to repair an item that’s still under the manufacturer’s warranty you may void the warranty in your item by performing unauthorized repairs.
Parts appearance may vary from the original component depending on the manufacturer the vendor uses. Please be aware that we cannot be responsible for damages because of installation of an incorrect part. Unopened, uninstalled parts can be returned within 30 days.