Fender introduced the Blues Junior in 1995, and has revised and updated it periodically since then.Blues Junior history can be divided into two major categories: the early amps with green circuit boards and the later ones with cream-colored boards.The NOS Blues Junior is a current production, lacquered tweed amp with a Jensen reissue C12N speaker. There’s nothing limited about the edition; they built a bunch and when they ran out, they built another bunch.
There are a number of resources available online to help you to date your guitar amplifier or bass amp.
While doing research on Fender amps in general, and the Champ in particular, I came across the most amazing series of articles by Greg Gagliano on the subject. If you have any interest in vintage Fender tube amps, without question you’ve got to read them all.
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.
For most purposes, the vacuum tube has been replaced by the much smaller and less expensive transistor, either as a discrete device or in an integrated circuit.
and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space.