Fender amplifier output transformer codes dating
We just don't have enough data to make any definitive conclusions yet. The author and his partners would like to thank those people who have sent us Fender amp information, especially James Werner, Tim Pershing, Gregg Hopkins at Vintage Amp Restoration, Jim Strahm and Matt Kesler at Midwestern Musical Co., and Tim Nelson at Mass Street Music.
We will be writing articles in the future with more fun factoids (yes, there's more! Also thanks to the many dealers at the various guitar shows that we visit for allowing us to make notes about the amps at their booths.
Preliminary results show that we're on the right track.
Here's a couple of examples using the tweed Deluxe (model 5E3) and the Super Reverb/Bandmaster Reverb. Model Year D05108 Deluxe 1958 D05160 Deluxe 1958 D06528 Deluxe 1958 D07036 Deluxe 1959 D07115 Deluxe 1959 D07418 Deluxe 1959 D08325 Deluxe 1959 D08913 Deluxe 1959 D09014 Deluxe 1959 D09338 Deluxe 1960 D09399 Deluxe 1960 D09524 Deluxe 1960 A27769 Super Reverb 1967 A27796 Super Reverb 1967 A29591 Super Reverb 1968 A31057 Super Reverb 1968 A31079 Bandmaster Reverb 1968 A32839 Super Reverb 1968 A32841 Super Reverb 1968 A34448 Super Reverb 1968 A37667 Super Reverb 1969 A37949 Bandmaster Reverb 1969 A40130 Bandmaster Reverb 1969 A41569 Super Reverb 1969 So, with the knowledge gained thus far, we feel that Fender tube amps can be dated by serial number.
First I would like to thank everyone who responded to our request for data as outlined in the initial article that was printed in March 1997 issue of TCG.
Most notably, I'd like to thank Jeff Lacio for his contributions to our research.
Devin runs Doc's Music in Springfield, Missouri and his interest lies in the woodie and tweed Fender amps made from 1946 through 1960.
The 4x10 Bassman used the prefix "BM" while the piggyback Bassman used the prefix "BP." The reverb units have the prefix "R." In addition, the tweed Super, Pro and Bandmaster sometimes have the prefix "S" in the serial number.
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.
I turned to the Internet to do some more networking which resulted in a major turn of events as I met two individuals who have become instrumental partners in this project: Greg Huntington and Devin Riebe.
Greg is a long time Fender collector who is very knowledgeable not only in the details, but in the circuitry as well.