First, the tables should be used as a guide only. Okay, I know you're all just dying to skip ahead to the serial number tables but try to contain your excitement and read through the article first. The source-date code on a pot is a 6 or 7 digit code impressed into the casing of the potentiometer. How about those rarebird Vibroverbs? Non-Schumacher transformers - It's been universally accepted that Fender only used Schumacher transformers on amps made in the s and s. I just discovered that the silverface Bandmaster speaker cabinet the big, tall one without tilt-back legs is ported see photo. It's not certain when Fender added the white rectangle around the bright switches, but they are there by early But it wasn't always 'cool guitar' amps, sometimes I was making Fender Rhodes Satellite amps on bent aluminum, sometimes only Champs. One thing we know for sure is that production codes can help date an amp to a particular month within a given model run. If you can't, read the above information again! I Didn't Know That! This must have been one of those "Leo messed with it" amps that Forrest White speaks of in his book. The tube chart indicated the AA circuit, but there were some very strange original resistor values inside. Here's a very quick summary that may be helpful: The Australian Fender Distributor then installed V - V stepdown transformers in the bottom of the cabinets. Sometimes date codes are ink stamped on the inside of the cabinet mainly blackface and silverface amps including the piggyback speaker cabs , but those handwritten numbers you see in wax pencil or lumber crayon are actually matching marks. Each side of the cabinet was made from several pieces about three or four inches wide, glued side-to-side, to make up a plank the depth of the cabinet.
Remember, FMI didn't like to waste anything witness the Custom and Swinger guitars so using up the remaining AB Deluxe chassis wouldn't be a surprise. These amps are usually the ones that have "hum" problems if they don't have filament resistors added. Some caution is advised since it is likely that not all chassis were used due to defects or that duplicate serial numbers may have been stamped. On 3 digit date codes, you have to "guess" the decade of the pot or speaker. And for other models, the tone stack did not change from. These laminated cabs were not finger joined, but rabbet joined. The baffle board on these rabbet joined cabinets was mortised into the sides and bottom i. I Didn't Know That! The first was a brown Super Amp. Besides, no article in the Dating Fender Amps by Serial Number series would be complete without some interesting information, n'est ce pas? If you can't, read the above information again! Over 6 years in the making! The only major difference in tone between the two circuits would be attributable to the different tone caps. He recalled, "We just went to a big bin every morning and loaded our wheeled rack with a batch of whatever chassis we were working on that day. Thankfully, these aberrations are pretty rare. I think in the corners of the boxes were older pots remaining from earlier dates Large overlaps in years may be due to lack of sufficient data late s to mid s or simply that the stamped chassis were used way out sequence mid s to early s. I promise the tables will still be there after you finish reading. Scanning a few internet discussion pages, I've noticed quite a bit of misinformation going around regarding Fender tube amps mainly from people who haven't studied the available published literature on Fender amps, i. This must have been one of those "Leo messed with it" amps that Forrest White speaks of in his book. Examples of Source-Date Codes. In the case of early tweed amps, there simply isn't enough info available at this time to accurately date these by serial number, though some rough guidance is provided. They were something to behold, all chatting away while soldering so quickly, it didn't hardly seem like they were looking at the amps. Okay, I know you're all just dying to skip ahead to the serial number tables but try to contain your excitement and read through the article first. The ceramic cap is more commonly found on brown and blonde amps to prevent parasitic oscillation.
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