The code follows the format: = a number from 1 - 52 indicating the week of manufacture.Remember, your amp is newer than the newest component.Even at we struggle with keeping a correct amp and speaker model overview.There are also exceptions to the rules where Fender delivered non-standard speakers in special orders, Christmas campaigns etc. See our Buyer’s guide to vintage Fender amps for a guide and picture gallery of the known original speakers in the blackface and silverface amps.The process that went into figuring all of this stuff out over 6 years and countless owners of vintage Fender amps is hands down an amazing story.Electronic components such as transformers, potentiometers, speakers, and some capacitors are often stamped with a date code, which indicates the manufacturer and the manufacturing date.As you can see from the photo below, the serial number of my amp is C 09556.Looking at the chart below we can see that there was a pretty consistent numbering scheme for the vintage tweed Fender Champs.
It is stamped into the chrome chassis with a white letter “C” (for Champ) and the serial number, also in white.
The Blues Junior is a tube guitar amplifier introduced in 1995 by the Fender company.
It is aimed at achieving the warm, tube-driven tone common in many styles of American blues and blues rock dating back to the 1950s, while remaining both portable and affordable.
Fender frequently releases limited editions of the Blues Junior.
All have the same electronic components and specifications but have cosmetic changes and often a different speaker, at varying prices.