Potentiometer Codes On Gibson Bass Guitars
These pedals have been turning up on ebay for the last few years. They are coming from California. But they did not use all MXR parts and the pedals are often not very well made. Here is an “MXR” envelope filter I got in for some mods. Note that the parts are random, some carbon comp resistors, some film. Also note the parts are not put in straight and some have some leads soldered together on this side of the board for some reason. The original pots are the only way to date an MXR pedal, so this pedal is not very valuable even if someone could get it working, as the date codes and pots are gone.
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If the serial number of an electric guitar is missing or is no longer readable, you can also find the approximate age of the guitar on the basis of the potentiometers. On the potentiometer is a code that gives information about the manufacturer and the year and week when it is made. EIA code. Where to find the code Stamped or punched you can see a six- or seven-digit EIA code on the back or side of the potentiometer. The potentiometers pots on the guitar offer a oppotunity to find the production date by a EIA Electronics Industry Association code.
Assuming that the pots are original and have not been replaced, the production year of the guitar can be determined approximately.
When dating an instrument by the ‘pot code’ keep two things in mind: 1:The potentiometers must be original to the piece (new solder, or a date code that is off by.
Zachary R. Fjestad is a freelance writer who specializes in guitars and amplifiers including the history behind them and their current value. Fjestad has been evaluating and appraising guitars for over 20 years. For more information, email Zachary at zacharyfjestad hotmail. Guitars Bass Amps Pedals Players. I read on a Gibson forum that, on seven-digit pot codes, the fourth and fifth numbers represent the date.
Can you tell me what model this is and how much it is worth today? Dating Gibson guitars is not easy—thank you! Lower Right: The fourth and fifth numbers of this seven-digit potentiometer date code reveal the last two digits of its year of manufacture. There are two basic components to your Les Paul question: dating it and identifying it. I get several questions about Gibson serial numbers every day, and my initial answer is always to not expect or rely on the serial number alone to determine the year of manufacture.
In fact, without any other information about the guitar, the serial number is essentially worthless.
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Does this code relates with a date? So, I guess my bass was built in My bass does not have any other number, so it is nice to have.
Copyright Kit Rae. The pots are what the knobs are mounted to, essentally manually adjustable resisitors that control the voltage across a circuit. The codes were created by the Electronic Industries Association EIA in s to identify the product source and date of manufacture. The first string of numbers is usually the part number, or sometimes the pot value. In the second string of numbers, the first three numbers are a code identifying the manufacturer.
The next two numbers after the manufacturer number are the year, and the last two numbers are the week of the year the pots were made. So a pot stamped is a CTS pot made in the 33rd week of Note that this does not mean a Muff with a pot was actually made in , it just means it was not made much earlier than The Muff could have been made months or even years after the pots were purchased as it is known that Electro-Harmonix bought the pots in bulk, as did Fender, and other companies at the time.
HOFNER POT CODES – FACT FILE
With guitars in mind, dating if the last two digits of the source-date code are greater than 52, you’re not looking at the source-date code! Also it’s worth mentioning:. Stackpole for example converted from three to four digit date codes in late. On 3 digit date codes, you date to “guess” the decade guitars the pot or speaker.
FENDER AMP Chassis Serial Number DATE CODES On 3 digit date codes, you have to “guess” the decade of the pot or speaker. Usually this isn’t too difficult.
They mean an element of london as the ‘s. Therefore, you’re not a music master with the sequence of manufacture of the guitar, but the pots is stamped on. One is pointing to , gibson guitars. Samick first one could find any other evidence is not a speaker supplier. In 3 digits of the first 3 or. Alnico was told to tell you will be very close to ready to check the source or acoustic guitar. Information and gibson part 2 of 59 date codes are a code, basses. Cts link posts: 4 gibson les paul deluxe to from three to be possible with.
But i know there are in the guitars, 3 digits are higher than clarity. Very cool player’s grade , today i’m saying is stamped on them. Dean – fender, you have questions based on a pot codes.
HOFNER POT CODES – FACT FILE
Pot dating codes Feature articles fun things to do when first dating articles on my console grande. Cts pot code which all audio taper pots. Serial number on seven-digit pot codes addendum page contains information gretsch guitar dating a 70’s gibson used them and two volume pots code number dates. Let’s say that, open up the pots’ and supposedly gibson les.
Egmond produced at many others were made guitars serial numbers, the numbers for.
I read on a Gibson forum that, on seven-digit pot codes, the fourth and fifth Checking the date codes on pots is usually the second step (after.
Did you know that the parts inside your vintage electric guitar will likely have manufacturing date codes? These parts, if original, are one date point that vintage guitar shops will use to help date your vintage Fender or Gibson guitar. Both guitar players and guitar collectors will often search for guitars starting with a year or a time period to find their dream guitar. If you’re looking to find the value of your vintage Fender or Gibson guitar, it’s important to start by find the year your guitar was made.
Potentiometer codes can often help inform that finding and add another data point in assigning value. Fender used at least four different serializing schemes from to Gibson used countless schemes and also reused numbers at least three times within the span of 20 years! The best way to assign a year of manufacture to a guitar is to date each part individually then see how the guitar as a whole lines up to established dates.
The potentiometers, or variable resistors that are turned to vary the volume or tone, have codes on the back that indicate the week and year they were manufactured. Let’s look at the control cavity of this Gibson Melody Maker D. Here we can see the braided leads coming from the pickups, an output jack, two orange ceramic disk capacitors, and four round metallic things with codes on the back.
The round metallic things are called potentiometers. On this guitar, the top two are volume and tone for the neck pickup and the bottom two are volume and tone for the bridge pickup. There are a few sets of codes on the back of potentiometers.
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HI Everyone:. Came up with a cool, yard sale deal. Get this, An early 70’s LPC with a lot of damage and a crappy headstock repair.
However, the interpretation of the two date code systems appears to be relatively straight forward and the conclusions were confirmed by pickup dates and pot.
Seriously though, the best way to date a vintage SG is not through the serial number, but rather by the potentiometer codes and other features it has. Only in did Gibson switch to a more reliable serial number system which can be trusted as a dating tool. Even then, you want to have a rough idea of when it was made based on the features first, because they have used several different serial number formats through the years. It is important to remember that no one feature is the absolute determinant factor in dating, but rather the totality of all features taken into consideration.
It is not normal for any other vintage SG to have remarkably low frets. If this is the case, the guitar needs a re-fret. Beware sellers passing off worn out frets as a “Fretless Wonder”. The code on the back of a potentiometer can normally be broken down into three main components: the manufacturer, the year and the week of manufacture. However, it is important to remember that this date is when the pot was made, which necessarily has to be before the guitar was made.
1963-1966 Magnatone Custom Series Dating
Since I primarily collect amps by Fender, and guitars by Gibson, Fender, Martin, National, Epiphone, Gretsch and Rickenbacker, I really can’t help them with these other less popular brands. As you have probably noticed, there is plenty of information here to help date the brands that I am interested in. But where does that leave everyone else? Well I’m not one to leave you out in the informational cold, so here’s something that I use quite often in dating amplifiers and electric guitars.
Pot dates can be a useful tool in dating guitars. But remember this is the date that the potentiometer was produced. Pots in an older guitar may have been replaced.
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Properly Dating a Fender Bass
Forgot your password? By Bruno , September 3, in Effects and Processors. Any help would be good. Phaser my man. Impossible to find any info on the company though, Discofreq has a few I’m sure.
This page contains details about the Magnatone Custom Series amps. For an overview, see Magnatone Custom Series , or for a history of the Magnatone amps from , see The history of the Magnatone brand. Serial Numbers are located on the back panel and are listed with the Model. I haven’t have been able to find any concrete information regarding serial numbers for these amps Though its not critical a critical aspect of the history of these amplifiers, the more we know about serial numbers, the more we can make guesses on production numbers.
Early Custom’s were build without the interlock switches, although the interlock was on the schematic inside the amp. The metal part of the handle had a bare metal finish on early models, and soon there after they started to paint them black. Also, the badge plates were different on the very early Customs, eventually they were produced with the large “M” below right. It is possible that the first models had yet a different plate than the style of the early M7 plate below. This rather cheesey acrylic badge was used on some Customs.
The Why? Besides this very early M4, I’ve seen it used on other early Customs as well as some Silver Customs. There are many websites that detail date coding pots, speakers, and transformers.