Dating fender blues deville amplifier serial
There are some exceptions and some overlap, but the general idea is this: Tweeds (early 50’s to very early 60s), Browns (1960 – 1962), Blondes (1962 – 1963), Blackface (1963 – 1967), and Silverface (1967 – 1981).
Up until the end of the blackface era (1967), all amps left the factory with a tube chart that had a two letter date code stamped on it.
There are some easy ways to find out when your vintage Fender was manufactured.
First, to get a general idea,there’s the appearance/style of the 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.
The first of the three digits tells us the last digit of the year (unfortunately not decade specific) and the last two numbers tell us the week.
In the above example, the transformer was made in either 1966 or 1976, week 45.
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An external speaker jack is located next to the output tubes in the back and allows the signal to be heard out of both the amplifier itself and the speakers to which it is connected (which must have a 4- or 8-Ohm impedance).
The De Ville features a 60-watt valve amplifier with three 12AX7 preamp valves and two 6L6 output valves.
Most post tweed Fenders had trannys manufactured by Schumacher.
They used a code like this: 606 – 645 The date is in the last three digits, after the 606 – .
If you look at the back of the amp on the inside right there is a QA sticker there will be two letters in black print, write them down and log on to Then go to the fender FAQs and click on the question how do I date my fender amp.