I recently purchased a 1972 Silverface Champ for 40 bucks.I am not an expert on amps, Fender amps, or Silverface Fender amps. I am merely someone that loves old gear, appreciates Silverface amps, loves to write, and loves history.You’ll find 2 rows of numbers, top set is the Fender part #, always starts with a 022, in this case it would be 022921. Works as follows, they have 6 numbers, first three is the EIA manufacturer, ignore this. A silverface made on the 23rd week of 1974 will have the same date code.
Fender has used only a handful of different speaker types over the years.Here’s a list of brands along with their EIA codes.So, here I am, writing about the history of some old gear, the Silverface Fender.I also have a small amount of knowledge of and experience in working on tube amps.Fender did it a disservice to call it a “Pro Reverb”.
It is so different from the blackface and silverface Pro Reverbs that it really doesn’t fit the description, but it is a wonderful amp.(I’ve also included a few others brands you might encounter as aftermarket installations.) This should help you identify your speaker.You also mentioned that you’re looking for a speaker option that decreases the overall volume of your amp.View the underside of the chassis (flashlight helps alot)look for the reverb driver trans.Its in the middle of the 6 preamp tubes with the removable shields. For a black face, this transformer would have been made in 1964 during the 23 week (—423) The trick to this is they don’t renumber the decades.Mic is not responsible for the content, just the collection.