Most post tweed Fenders had trannys manufactured by Schumacher.
There are components in the amp that hold live current long after the amplifier is unplugged.
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.
The tube chart date code works like this: the first letter indicates the year and the second letter indicates the month.
So if your blackface amp has a date code stamp of OB, it was made in 1965/February.
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.
So, here I am, writing about the history of some old gear, the Silverface Fender.
They are called "silverface" due to the brushed aluminum look of the faceplate. Do a quick look on ebay, eliminate the ridiculously high opening bids that no one else has bid on, (which in case of the search I just did is well over half of them) and you'll find that in most cases you can expect to pay about twice as much for a Blackface than a Silverface, and at least three or four times as much for a tweed.
(5 or 6 times as much in the case of a tweed Champ vs a silverface one) Face it, tweeds are actually museum artifacts, and if you find any genuine tweed Fender for under a grand, buy it and consider yourself extremely lucky, and I'm not going to compare Silverface equipment to tweed.
Presently, I personally own only two well worn Silverface road warriors, a 1971 Champ, and a 1972 Bassman 50 (AA371).
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.
Its pretty hard to get extremely accurate information on the history of Fender amps..several reasons..someone will always criticize the specifics.