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This sticker is a chart that shows the types of tube types used and the order of their physical location in the amplifier, and may be rubber-stamped with two-letter date codes that denote the year (first letter) and month (second letter) of production.
These stamped letters may appear in various positions on the chart.
Although the dates derived using the charts below will likely be a good approximation, they should not be considered exact.
All Fender amplifiers manufactured from 1990 to the present include a date code, printed on the quality assurance (QA) sticker on the back of the amp chassis.
If you are unable to determine the approximate production year of your amplifier using the above charts, there are other means of dating Fender amps.
Several excellent books are available that contain reliable and invaluable information on the history of Fender amplifiers. To use these books most effectively, you’ll need to get the date codes from the speaker frames and potentiometers, and as much other detailed information as you can find about the specs and features of your amp.
If four digits are present, the first two digits refer to the year (i.e., a “66” would mean 1966).
While dating Fender amps made before 1994 by serial number is all but impossible (as records of these numbers were never kept), all hope is not lost—the charts below should prove helpful in dating your Fender amp.First, it will be useful to you to understand the following five terms in order to choose the correct chart for dating your amp: refers to the two-tone woven fabric that covered many early amplifiers.On early amps, this material was varnished to make it a more durable covering.Anything else is at the discretion of the manufacturer.Click here for more Manufacturer Codes Speaker Implementation and Amplifier Configurations If you would like to add some info to this list, (any company, any model) feel free to write us with the info.