Dating fender amps transformer codes
The early silverface amps can be identified by the aluminum trim strip around the perimeter of the grill, the silver and blue grill, and black vertical lines silk-screened onto the front of the control panel.The aluminum trim was retained through late 1969, though we speculate a few early 1970 amps may have had the grill trim as well.Another interesting feature of the silverface amps is the change in chassis dates.Many blackface amps were stamped with a date code on the inside of the chassis.
There are other ways but the above is a more accurate method.
Although the cosmetics changed, the circuits remained unaltered from the blackface circuits on these early silverface amps.
The date of the change from the blackface circuit to the CBS silverface circuit was dependent on the model, but most of the amps that were modified received the circuit change by mid-year of 1968.
only Fender amps, and single handedly has submitted well over 250 very complete sets of data.
Despite the heroic efforts by Jeff and other readers, we still need more data, so please keep it coming.