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.Additionally, Greg and Devin also had data that they had been collecting from Fender amps for years. Everything is confidential, we don't make record of who owns what amp in the database.
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.
If anyone has an amp with a "PA" stamp, please let us know.
Still, I wouldn't be too quick to just glance at that tube chart and accept an "OA" as a January 1965 amp.
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.Our evidence is that we are finding some serial numbers duplicated between models.For example, serial number A00121 has been found on a Champ dated November 1964 and a Vibrolux Reverb dated February 1965.The factory realized its mistake in February because these amps have a "PB" date code in black ink.Now, we obviously haven't looked at every amp made in January 1966 so this isn't set in stone.Jeff is an amp tech who specializes in Fender amps, i.e.