First, a foil sticker containing a 4-digit serial number was affixed to the chassis over the A The second thing that was done was the addition of another number stamped into the chassis as a suffix to the A serial number, e. So how many of these chasses were made? Well, for the 4-digit serials affixed on a foil sticker, numbers as low as and has high as have been observed. Assuming they were all used sequentially and starting at , there would be around non-master volume silverface Twin Reverbs and Dual Showman Reverbs out there.
The amps that received the stamped suffix must also be added to this sub-total. The lowest suffix observed to date is A and the highest is A Assuming the suffixes started with and went to , there would be around of these floating around.
Of course, this is all hypothetical, but still plausible. In addition to A, it appears the stamping machine stuck on serial number A as four distinct amps with this number has been reported. Could it be the machine also got stuck on A, , , and ? These have not been observed or reported so the answer remains unknown. Fender had a big transitional year for their amps in But changes took place in as well.
This was the first year for the blonde 6G9 Tremolux. To make things more interesting, there were two versions of the 6G9 6BQ5 circuit. The earliest version had 12 coupling caps. The best estimate is that about of these were made before the circuit was revised.
The revised amp had 14 coupling caps and there may have been upwards of made. Since these amps are so rare, it is impossible to comment on the technical or tonal differences between the two circuits. Another anomaly was observed in with the 6G6-A Bassman. Rather than waste those 8-ohm output transformers in stock from previous 6G6 production, Fender used them up on the first 6G6-A with 4-ohm speaker cabinets.
Yes, Fender went with a deliberate mismatch, not unlike the 3x10 brown Bandmasters that shipped with 8-ohm output transformers. Very few of these were and those who own one of these oddballs can either be happy with the fact that it is a rare amp or be sad that the mismatched impedance means the amp is less efficient.
And now for an important update! The following charts are the revised dating tables for Fender tube amps. The revisions were made based on data collected since the tables were initially published. Some tables changed very little and others changed quite a bit. For some reason, folks are willing to poke their head into tweed, blonde, brown and blackface amps, but not into silverface amps.
For now, the dating schemes for these series are:. Finally, these tables are only a guide. There will be amps with serial numbers that lie outside of the listed ranges. This is no different with published dating tables for vintage Fender guitars and basses. For better or worse, this concept is common to this endeavor.
Bandmaster 5C7, 5D7 tweed. Bandmaster 5E7 tweed. S to S — Bandmaster 5G7, 6G7 brown. Bandmaster 6G7, 6G7-A blonde. Bandmaster AA, AB blackface. A to A — Bandmaster AB, AC silverface. Bassman 5B6 tweed. Bassman 5D6, 5D6-A tweed. Bassman 5E6, 5E6-A tweed. BM to BM — Bassman 5F6, 5F6-A tweed.
For more information, please visit this site: Fender Support. Please leave me a comment. Kcbuck is a master administrator and an all time top contributor at My Guitar Buddies.
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Please sign in To submit your vote please sign in or sign up , it is free and takes a few seconds. Read more Allow hot links courtesy of pianowow Neither the date nor the value can be determined from the serial number. For more information, please visit this site: Fender Support kcbuck So Those may interest you: Fender Hot Rod Deluxe production date?
How do I date a fender blues deville. Please Date my Fender Twin Reverb. Date of construction of my Fender Deluxe Reverb Amp. Fender Blues DeVille - production date?? How to date a Fender Quad Reverb How do you determine the manf.
I see Can you tell me the date and kind of amp i have by the model LL serial Looking for manufacture date for Fender Bassman I have a fender twin silver face I'm trying to date. The first two digits stand for the last two digits of the year of manufacture if made in the 20th century , while the last two digits stand for the week of the year. So if the EIA number is , the first three digits is the manufacturer code.
We see from the next two digits 58 that the transformer was made in , and we see from the next two digits 07 that it was made in the seventh week of Rarely, a transformer will have a six-digit code. If this is the case, the first of the last three digits is the last number of the year of manufacture. You would need to have a general sense of the decade in which your amp was made to date it this way, but many of these six-digit codes were printed in the s. Transformers are made before being added to amps, and in some cases, they also spend a good amount of time in storage.
The transformer also could have been replaced. If you are confident that the transformer is the original one that came with the amp, adding six months or even more to the transformer manufacture date will give you a good idea of when the amp may have been built.
You already know that the tube charts for older Fender amps have letter date stamps. Newer Fender amps use similar date codes.
Instead of being printed on a tube chart, these date codes are included on a sticker on the back of the amp. So in the case of this example, the amp was made in March of If your amp was made in or after, use this table instead. We hope that you can now go forward confidently and decode any Fender USA serial number that comes your way. Happy amp hunting! You might also get interested on how to choose best guitar amplifier. Your email address will not be published.
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