Dating fender amps transformer codes
Devin runs Doc’s Music in Springfield, Missouri and his interest lies in the woodie and tweed Fender amps made from 1946 through 1960.Greg and Devin’s experience meshed well with mine since I’m essentially the blackface/silverface amp guy (amps made between 19) in the group.These appear to be used sequentially independent of model.Likewise, the brown/blonde Tremolux, Concert, Vibrasonic, Twin, Pro, Super, Vibrolux, Showman, Dual Showman, and Bandmaster used a sequential numbering independent of model, but as with Fender guitars, these were not used consecutively. The 1956 to 1963 Champ, Harvard, Princeton, Deluxe; the 1956 to 1960 Vibrolux, the 1956 to 1964 Bassman, and all the tube reverb units have their own serialization scheme.In the fall of 1965, Fender switched from stamping these numbers in black ink, to dark green ink.These 1965 codes begin with the letter “O.” The code for the year 1966 is “P.” However, someone in the factory apparently forgot to switch the stamper from “O” to “P” in January 1966.It would be more accurate to say that approx 650 of each of these models were produced in ’60. Well, we’ll get to good parts, but first a little background information is in order.
and these changes are often disclosed and of a non-malicious nature.
The blackface and silverface amps (late 1963 to 1980) generally have serial numbers begin with the prefix “A.” However, it appears that these were not used sequentially across all models.
Our evidence is that we are finding some serial numbers duplicated between models.
Now, we obviously haven’t looked at every amp made in January 1966 so this isn’t set in stone.
If anyone has an amp with a “PA” stamp, please let us know.
After CBS bought Fender in January 1965, there were still plenty of control panels for various models that were in stock.