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Dating deluxe reverb amp

(see chart below) YY = is a one or two digit code indicating the year.If it’s a one digit year you need to determine the correct decade of the amp some other way.

You can easily identify these 1968 amps by the silver-metal band around the perimeter of the grille cloth.

The 1969 schematic revision shows a return to the standard fixed-bias, 100-watt output-stage configuration, though the bias and phase inverter changes remained.

In order to date a Fender amp or provide the value, you need to know one of the below: * The 2 letter date code rubber stamped on the Tube Chart, or * The 2 letter date code on the QA Sticker, or * The Transformer Number that starts with “606-XX-XX”, with the 3 or 4 Xs being the unknown numbers that need to be provided by the owner of the amplifier asking the question.

: The transformer number tells you when the transformer was made and not necessarily the date the amplifier left the Fender Factory, the “2 Letter” date code on the Tube Chart or QA Sticker actually tells you that and that makes it the most accurate option for dating the month and year it was made....

Our Buyer’s guide to vintage Fender amps explains in detail how you can date your amp by looking at serial numbers, tube charts, transformer codes, speaker codes, Fender logo, etc.

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Lots of different speakers were used in the blackface and silverface era Fender amps.Even at we struggle with keeping a correct amp and speaker model overview.There are also exceptions to the rules where Fender delivered non-standard speakers in special orders, Christmas campaigns etc. See our Buyer’s guide to vintage Fender amps for a guide and picture gallery of the known original speakers in the blackface and silverface amps.Some players actually prefer these models, however, because they tend to compress more easily than any other Twin.According to the dates on Fender schematics, these “improvements” only lasted for a year.In a BF Vibrolux Reverbs you could have either Jensen, CTS or Oxford, the BF Super Reverbs had Jensen, CTS, Oxford or sometimes JBL, the BF Pro Reverb had Jensen, Oxford or Utah, .In the silverface era Eminence, Oxford, Utah and Rola were more often used and Jensen was phased out.The tube is fed a signal (from channel 2, or the “vibrato” channel, in the case of Fender reverb amps).The tube’s output connects to a transformer, exactly as in a single-ended amp like a Champ.An additional change occurred in 1970 with the addition of a capacitor to eliminate “ticking” in the tremolo circuit.I’d appreciate any thoughts you might have on this amp.

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