If three digits are present the first digit refers to the year i e a 7 would mean 1967.
Fender bassman cabinet serial numbers.
These codes are for amps with the serial number beginning with a letter.
I got this one.
Citation needed the earlier cabinets have been called tv front designs 1 with a front panel that had a rectangular grill cloth with rounded corners and looked much like a television of that era.
Here are the serial number schemes from 1951 to 1970.
It doesn t hold any info about dating fender cabinets.
1951 to 1954 the serial numbers were 001 0900.
The site gives info about amps with i e.
If four digits are present the first two digits refer to the year i e a 66 would mean 1966.
These numbers always begin with eia 606 and are followed by three or four digits in various combinations.
1970 1989 most amps do not have a date code stamped on the tube location chart.
It does give info on dating fender amps by serial number.
1951 bm00001 to bm00550 1956 bm00550 to bm01200 1957 bm01200 to bm01600.
How about those rarebird vibroverbs.
If you are unable to find the production stamp find the serial number that is also printed on the tube chart.
A7 five digits not four.