Dating a fender amplifier with serial number
While there have been periods of dramatic change—such as the transition periods between the Leo Fender years and the CBS years or the transition between the CBS years and the current ownership—most models are generally feature-specific and do not change from year to year.
SERIAL NUMBERS are also helpful in determining an instrument’s production year.
The code follows the format: XXXYY ZZ where: XXX = a two or three (possibly four on newer amps) digit number indicating the manufacturer.
Remember, many components could have been changed over the years, speakers blow, caps dry out, transformers melt down, and pots wear out.The fist Master volume controls were first installed in 72.The raised “Fender” grille logo lost its tail around 76. Most notably, PRODUCTION DATES have been penciled or stamped on the butt end of the heel of the neck of most guitars and basses, although there were periods when this was not consistently done (1973 to 1981, for example) or simply omitted. instrument production history, PRODUCTION DATES have been applied to various components.