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Dating silverface amp

Fender must have had a million of these labels printed up since they appear on Champs and Vibro Champs well into 1966.

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.

Therefore, amps from January 1966 have the date code "OA" (A denotes January) in green ink.

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.

Jeff is an amp tech who specializes in Fender amps, i.e.

dating silverface amp-50

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.

dating silverface amp-14

In the fall of 1965, Fender switched from stamping these numbers in black ink, to dark green ink.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.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.These say "Fender Electric Instruments." Depending on the model the use of these pre-CBS panels have been observed on amps as late as August 1965, except for Champs and Vibro Champs which had foil stickers on the back the chassis.