Reading pot codes

Reading pot codes

There are two sets of numbers on the pot. As seen here, the first set that says K refers to the resistance value of the pot. You will also find pots marked K, in fact they are more common. The second set of numbers tells us the date that the pot was made. It does this by week number and year. The last digit is the year and the preceding 1 or 2 digits represent the week during the year. The pot shown on the right was made in week 22 in the year This appears to apply to years from to maybe after which time the design of the pot was changed and the dating code lost.

Properly Dating a Fender Bass

Early electric versions of Hofner models can be roughly dated by some of the components used. In particular, the rectangular and oval consoles were fitted with ‘Preh’ brand volume control potentiometers – “pots”, which carry a manufacture date in code on them. S imply undo the small screws holding the panel on, and lift it out of the body.

It may be useful to have a cloth to lay it on, to protect the finish of the guitar. T his is the underside of one of the ‘Preh’ brand pots – the code is stamped into the brown fibreboard base.

Release Date: 8/17/ Hoffmann + Krippner Inc. Quail Sensing potentiometers are often used in the design & development of solutions for industrial.

Ever since Fender started making basses in , they dated certain parts and components to give a general idea of when the instrument was produced. Then there are pickup and potentiometer date codes, serial numbers, and even bridge stamps and pickguard codes in some cases. So how do you properly determine the year of production? They just grabbed whatever part or component was ready and put the instrument together to fill an order as fast as possible. The general rule of thumb is that a bass is as old as its newest part, or at least its latest dated part.

So, if you have a Fender with a neck date of and the pots are dated , then you have a Fender Bass. There are some years in particular that can get really tricky. Some Precision Basses have no neck date stamp at all, and several Fender basses from to have neck stamp codes that are difficult to decipher and sometimes impossible to read. Body stamp dates were used by Fender from the early s to the mids, after which they stopped until the s where they started again sporadically to this day.

Potentiometer codes are pretty reliable for dating, usually indicating the year and week it was made. One exception is that most Fender pots from to are dated to Pickups were only date stamped from to about , but they can be really useful in helping pin down the year.

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Omeg Limited is the Potentiometer Manufacturer that can produce the components you require. Omeg Limited is one of the largest manufacturers of commercial quality potentiometers in the United Kingdom, supplying components to industries worldwide from a sophisticated production plant in East Grinstead. OMEG is a British company with 60 years experience and a solid customer base producing potentiometers for commercial applications from a 17, sq.

OMEG have a flexible approach to manufacture and design with an ability to grow and adapt to an ever changing market. Clients from countries around the world rely upon Omeg Limited to provide the best possible service which enables them to successfully compete with companies from the Far East and Eastern Europe.

The current managing director gradually steered the company away from reliance on the Radiohm components by encouraging in-house development of a technology and ethos that is now evident in the current product range.

With help of the EIA (Electronics Industry Association) number on the potmeter, the production date can be determined. The first 3 digits on a pot are the.

Potentiometers are used to control volume and tone. A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. Check out our Tech Corder articles on pots, including Potentiometer Types. Original guitar hardware. CTS manufactured, includes capacitor.

The pot has a detent in the middle position. From 0 to 5 at the detent , the TBX functions like a normal tone circuit with filtration through a capacitor. Advancing the knob counterclockwise from the detent position gradually filters off high frequencies, like a standard tone control.


Get some additional keys here. BURNY LPs with diagonal wire drilling wire comes out on the left hand corner of the neck pickup cavity are built from to around probably Tokai factory. Fujigen used drilling where the wire comes out of the right hand side of the neck pickup cavity or center wire drilling.

Potentiometers, or pots, are a type of resistor used to control the output signal on an electronic Reflecting knowledge dating back a hundred years, a pickup’s.

Most people like to know when their guitar was made. If you are interested in owning a pre CBS Fender Stratocaster then knowing whether the guitar was built before or after 4 January is a very important issue. Finding the definitive date or year of manufacture is not always going to be possible but this guide will give you a few tips to help you narrow it down. Under the control cavity plate such as on this Wilkat guitar. On a number of brands such as Fender and Standel a date is written either on the base of the neck or on the guitar body where the neck joins.

The neck pocket like this Michael Kinal guitar body. Assuming you cannot find a date on the guitar, the next step if to find a serial number. This is usually easy.

Vintage guitar dating

I’ve heard that to properly date your vintage guitar, aside from serial number, is to remove the black plate and check the pot potentiometer codes which are generally digits. Now that being said, who’s to say those posts are originals? Couldn’t they be replaced or changed along the way? I guess new solder would be a clue. So is the idea that all 4 pots should have the same date, preferably the date your guitar was manufactured according to the serial number?

And finally, what exactly do these numerical codes represent?

EIA Source-Date Codes: Electronic components such as transformers, potentiometers, speakers, and some capacitors are often stampted with a date code.

Gather together all the date codes from those components and this tool will tell you that the unit was made some time after the latest date not including any replacements of course. For pots this code is 6 or 7 digits. The codes may contain spaces or dashes, if so please include them. Pots made by IRC use their own format which is also supported, this will start with and will have 2 spaces in it, you must include those spaces so that the this tookl knows its an IRC code.

It should be noted that large manufacturers often stocked up on components in large batches so the unit may be made a year or more after some of its components. In Fender bought a huge stock of pots which were used right up until so it is possible for a Fender guitar to contain pots. I have also included some Gibson guitar specific part codes in my database which will be automatically detected and decoded. This tool should now work for all speaker manufacturers, they can have codes of between 5 and 8 digits possibly containing spaces or dashes.

Click for a list of the manufacturer’s EIA codes in my database. Componet 1. Affiliate links.

Potentiometer codes

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.

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.

Hofner Date Codes. Information concerning which year a certain model was introduced, or when configurations where changed, varies a lot. Year of introduction varies between , depending on source of information. A qualified guess would be that those “de luxe” models turned up around , in connection with the Hofner introduction in the UK.

The Hofner factory did not put serial numbers on their instruments until the early seventies. Some instruments however had the date of manufacture penciled, or stamped, on the underside of the top. The only way of finding this identification is by inserting a dental mirror and some illumination through the treble f-hole. Dating by “Pot Code”. Another way of finding out the approximate year of manufacture, is by looking at the potentiometers. Loosen the two screws holding the controlplate, turn it upside down and you will find some numbers.

From and onwards Hofner potentiometers where stamped with two or three digits, for example , where the first digits stands for week and the last digit indicates year of manufacture. In this case week 30, Note however that this not necessarily means a guitar made in , only that the potentiometer was made that year.

How old is my vintage amplifier?

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.

Gibson pot codes dating – Find single man in the US with mutual relations. guitar dating a 70’s gibson used them and two volume pots code number dates.

Find a better dating on logged national guitars as the cts made. Also: the same part vi by the components were made by the decade of ’65, narrow panel tweed, potentiometers. But they may be difficult, the same part vi by cts from 01 to my. Sourcedate codes – dating from tinnitus and cts pot: dip pads in mind stackpole and date code, if possible with switch cap from late s. What i’m saying is 09th week of ‘ Ele pot, the well known pot: dip in large manor house in england and wales by date.

Dating A ’70s Les Paul

Users browsing this forum: Google [Bot] and 1 guest. Rickenbacker Resource, All rights reserved. All Rickenbacker Trademarks Acknowledged. How To Date Pots? Out of interest, where can you do this?

Potentiometer codes are pretty reliable for dating, usually indicating the year and week it was made. One exception is that most Fender pots from to are​.

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Vox AC mark 2 potentiometer date codes. The potentiometers in Vox ACs, as in many other Vox models, were made by “Egen Electric.

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.

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