I believe all my Silverface amps have no two-letter date codes. Both have SN's that start with F3xxxxx and was told that meant 1983.
I have Paul Rivera era amps and Bruce Zinky Amps to check. I could be wrong, but I've nothing to counter that comment for accuracy.
Our Buyer’s guide to vintage Fender amps explains in detail how you can date your amp by looking at serial numbers, tube charts, transformer codes, speaker codes, Fender logo, etc.
In the silverface era Eminence, Oxford, Utah and Rola were more often used and Jensen was phased out.
I seek the chassis stamped build date if possible, and I'm sure you do.
When did Fender go back to using two letter date codes for amps?
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