We combined all of our information into a computerized database for this project and for the past 18 months have been slowly (sadly, very slowly) gathering information that we collect ourselves as well as from other people. What we need is the following: 1) Model name 2) Model number on the tube chart 3) Date code letters on the tube chart 4) Speaker codes (if speaker is original) 5) Transformer codes (if the amp doesn't have date codes on the tube chart) 6) Cosmetic features (flat/raised logo, tweed/tolex, blackface/silverface, rough/ smooth blond tolex, white/skirted knobs, TV-front/wide-panel, etc.) One very interesting and very important factoid has surfaced regarding the date code letters on the tube chart.
In the fall of 1965, Fender switched from stamping these numbers in black ink, to dark green ink.
It’s unknown if the tweed covering was a mistake (“Oops, I thought this was a 4x10 Bassman cabinet that I was covering”) or intentional, perhaps as a special order.
Non-Schumacher transformers – It’s been universally accepted that Fender only used Schumacher transformers on amps made in the 1960s and 1970s.
Fender Amp Piggyback Fender Musical Insterments Santa Ana, Calif. No Date code on tube chart First Transformer Codes stamped 022897 606632 marked with the number 12 in red ink in the corners Second Transformer Codes stamped 022756 606737 Tubes are Sylvania in yellow ink Tube numbers are 6L6CG marked in light grey ink transformers 1966-1967 but serial number A 12779 indicates 1968 By entering this site you declare you read and agreed to its Terms, Rules & Privacy and you understand that your use of the site's content is made at your own risk and responsibility.
I havent played it for a couple years,i should probly look at the caps before i plug it in... A 12779 Production number is blank, just an underline, no number (hand written or printed).
Well, this universal “truth” was debunked when we found a bunch of amps with transformers made by the Better Coil and Transformers company.
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.
I have a Fender Super Reverb silver face amp that I will be selling.
I've had it since the early 80's and I'm trying to find out exactly what year it was manufactured.