Pretty much for the first 5 years, CBS didn't make that many changes to the amp circuits in production when they took over, and kept the current cosmetic scheme, a black faceplate with white lettering, black tolex (which Fender had changed to in 1964) and a bone colored grillcloth with black and silver threads in it.
But, there were a few changes here and there, some models were discontinued during that time..as the Concert and Pro in 1965 and the Deluxe in 1966.
If you need to see them, Google the Fender Field Guide. Quite simply, a Silverface Fender Amp is an amplifier made by the Fender Musical Instruments Company from late 1967 to 1983. I suppose that if you compare Silverface equipment to its earlier tweed and blackface brethren, the silverface amps are in many cases not that great, and that is the justification that has been used for a couple of decades by Silverface critics.
Both had seen many miles by the time I got them, and I've added a few more to the Bassman in the nearly 20 years that I've owned it.Actually, when I bought my head, it was in a Blackface box...which confused me for a long time until I realized what had happened.If you are not familiar with working on vacuum tube equipment, you should consult an experienced technician before opening any equipment containing vacuum tubes. The Free Information Society will not be responsible for any injury or damage caused to you or your equipment.*** Early Silverface Logo on Standard Silverface Grillcloth So, you've heard all of your guitar playing life, whether it be for 2 years or 25, that you don't want a Silverface Fender amp.I can't say today that they are the "best kept secret", because over the past few years, the prices on them are steadily climbing..obviously, the secret has gotten out.by Frank Stroupe ***WARNING-There are voltages inside of a tube guitar amp that can KILL you.
There are components in the amp that hold live current long after the amplifier is unplugged.Most changes generally made a louder, cleaner sounding amp, with more headroom.Of course, during this time, rock musicians were seeking more and more distortion.I apologize in advance if I got a date wrong, a model wrong, etc.Its pretty hard to get extremely accurate information on the history of Fender amps..several reasons..someone will always criticize the specifics.Actually, it is pretty incredible, if you really think about it, that Fender was still hand wiring all of their tube amps in 1982. The cases are heavy pine plank and/or marine plywood, with dovetailed corners, the transformers are huge, everything is overkill.