Ampeg dating serial number, speaker codes and what they mean
Until such time that enough information is available to date s Ampegs by serial number, the features of the amps from this period can be used and compared to the following table. These amps used a serial number system that was not used by any Ampegs. There's a picture of one after the changes in said Ampeg book.
In addition, the dating-by-serial number tables have been revised and are more accurate. The model codes below should help you identify which model you have, while the characteristics described for each year should help with dating. The serial number is one part of the puzzle when dating an amp, but cross-checking the originality of the different parts, including tubes, wiring, transformers, knobs, etc.
However, from the pics you posted, I believe it is, like mine, one of the earlier models. Maybe Jerrold or someone that's more knowledgeable than I am will see this and give us a thumbs up or down on my speculation. Kolderie As can be seen in the upper left, this guitar features all the usual hardware of later Dan Armstrong guitars.
Kolderie, a record producer and engineer who sent in photos of his Dan Armstrong guitar that somewhat fit my theory. The progress of this type of work is slow, hence the long hiatus, however, a lot of new data have been collected regarding Fender amplifiers, including production numbers. By mid to late Ampeg had closed down the production of the Dan Armstrong guitars and the news came as quite a shock to the employees on the production floor at Ampeg. The month codes below remained consistent from forward, but there have been several eras of year codes. The amps that received the stamped suffix must also be added to this sub-total.
Often these specimens produced between October and December had an offset chassis. On the contrary, it looks rather scribbled in there. Note that the year associated with a range of serial numbers is very rough and will likely change as more information is gathered for refining the estimates.
If you have absolutely no idea whether your Marshall is old or new, a good place to start is the model name or series. The fourth character is D, which indicates made in the St. This will give you an approximate idea of the era during which your amp was manufactured. So we had to quickly come up with a different convention for the guitar models. At upper right, the serial numbers on the bass instruments begin and end with Dan's initials.
Speaker Codes And What They Mean
Ampeg may very well have used or as the starting point during slow production periods. Greg was passionate about Fender amps and his knowledge, insight and humor will be missed very much. There was one screw at each end to attach it. Oops, dating two years younger looks like you forgot something.
Paul worked with Greg on their small box brown Twin myth busting research and is extremely knowledgeable about Fender amps in general with a specialization in the brown and blonde amps. Greg kept his illness very private, even from this author. Not too many people know more about the Bassman than Clarke. Luckily, it is very easy to determine which year the first digit denotes. This was an agreement made at the very beginning and one that Ampeg apparently came to regret over time as they felt that Dan's visits were a bit too sporadic for production purposes.
Production has continued there uninterrupted through today, though some lower-priced models are now made in China, India or Korea, depending on the series. Not enough information was available to the authors to determine year of manufacture by serial number. The second thing that was done was the addition of another number stamped into the chassis as a suffix to the A serial number, e.
Look for original black levant covering, a gray grille and the old block-style Marshall logo. No way to tell where made from the serial number? For some reason, folks are willing to poke their head into tweed, blonde, brown and blackface amps, but not into silverface amps. Advances have been made with regards to the production of tolex amps and it appears that much of this information can be applied to late s tweed amps as well.
- It all worked fine until we started to do some guitar necks and thats when we discovered that we would be duplicating serial numbers.
- For better or worse, this concept is common to this endeavor.
- The amps made since have a digit serial number which is encoded for model, country, date, and year.
Cabinets had serials at this point as well. To find the serial number on your Marshall amp, start by looking at the back panel of your amp. Marshall has always used Celestion speakers standard from the factory, and thankfully, free dating in usa and Celestion has been very consistent in coding their speakers. You have a matching cab for that too? My curiousity was satisified the day I heard from Mr.
View attachment Really good actually. Just got back from the rehearsal venue, and had a chance to check my serial number while I was there. Instead, there were approximately of these chasses produced, which then ended up as one of the three models in question.
Dan Armstrong - The Man and his Guitars
However, as the upper right reveals this guitar is fitted with a neck that has no serial number on it whatsoever. Of course, these codes are only applicable to original components, not replacement parts. The year codes changed after this, so using other pieces of evidence to make sure you have pre speakers is important. Marshall used letters as a date code to represent year of production.
The code contained information regarding the manufacture and date of production. Click here for information on ordering this book directly from the authors. Everything that Dan and Ampeg had learned about the manufacturing these instruments were featured on these instruments. During this four year stretch, Celestion speaker codes followed a day-month-year format.
The year codes started over, dating in toronto 2019 with beginning at A. His passing is a great loss to this research team and the Fender amp aficionado community in general. And now for an important update!
How to Date Ampeg Amplifiers
It was the same width as the big one, watch speed dating 2019 online but only an inch or so high. The best approach is to cross-reference the serial number with known features for the model during different eras and the personal account of previous owners. The best estimate is that about of these were made before the circuit was revised.
Hopefully I can get this figured out. Does anybody have anything new to add to this old thread? What sort of Condition is it in? Currently, Celestion speaker codes follow a day-month-year format.
Anyone know their stuff on Ampeg Serial Numbers - Amps and Cabs - Basschat
Speaker Codes & Applications
If the speakers in your Marshall cabinet or combo are original, they can provide another piece of evidence when determining the date of manufacture. The only date codes that seems to be readily available is found on the speaker magnet located under the bell cover. Therefore, do not poke around in your old Ampeg if you are unfamiliar with amplifier electronics or their operation. Another check for a versus a or later serial number i. The key is the model and the cosmetics.
Perhaps the answer lies with the rest of the hardware on this guitar. As seen upper left, the base of the neck is also where the instruments serial number can be found. Using the month and year codes below, and knowing what order they are in for different eras, you can easily decode a Celestion speaker's age. These current serial numbers are arranged in a letter-ten digits-letter format A-xxxx-xx-xxxx-A.
- The guide below will help you quickly and clearly date Marshall amps and cabinets, without us waxing poetic about their influence.
- Interest in vintage Fender amps really took hold about years ago.
- Unfortunately, there is some sad news to report as well.
- Both my logo plates were so worn and cracked that I discarded them in favor of installing the chrome script logo directly onto the top lip of the speaker cabinet, above the baffle board.