Fender Power and Output Transformer Date \ Part Number Verification

Select a component type and provide any additional information needed in the left sidebar before filling in the date code. Please enable JavaScript to use this form. Part Type Type of Component Pump. Primary Controls. AC Ready Kit. Tank Accessories.

Identifying and Dating Vintage Neon Transformers

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These codes have been used on components including potentiometers (pots), transformers, capacitors, tubes, and speakers. The code usually consists of 6 or 7​.

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transformers. In this guideline, the following code is used to represent the type of digits appearing in C-M will certify that any transformer manufactured after is PCB General Electric Company did not use a date code prior to

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. It’s called the “source-date code”, and it can help determine the approximate age of an electric instrument by the date its components were manufactured. Source-Date Codes On American made vintage gear, the pots and speakers provide an excellent opportunity to date a piece of equipment by referencing their “source-date code”.

The source-date code found on pots and speakers gives the manufacturer and date roughly when the components were made. It may have been some time before the part was installed at the factory, but it still provides a good approximation of when the gear was made. The source-date code will signify the earliest possible date that the instrument or amp could have been made. This isn’t going to be exact, but it will give you a “ball-park” age. And remember, even the dates indicated by the pots aren’t that exact.

For example, if you buy a brand new CTS pot today, they are dated a month or two in advance! It’s worth mentioning since a lot of people rely on pot dates.

Date/Time Functions

There are some easy ways to find out when your vintage Fender was manufactured. Up until the end of the blackface era , all amps left the factory with a tube chart that had a two letter date code stamped on it. Another way to get a close estimate of when your amp was made is to read the codes on the transformers.

Dating a Marshall amplifier can be a daunting task for even the most savvy and codes, including speakers, potentiometers and transformers.

Use the following functions to parse, format, and manipulate date, time, and datetime values anywhere in FME where expressions are supported. Tip: Use DateTimeParse to repair leap seconds and other temporal values containing parts that overflow supported ranges, such as datetime values generated by sensors and other mechanical devices. An optional third argument specifies the type of cast operation.

See DateTimeCast for details. Can be used for validation and repair. Can parse leap seconds by carrying the extra second forward so that all parts are brought in range. When a time component is missing, midnight is assumed. Can be one of date , time , or datetime , case-insensitive. Other values are rejected, with the result set to null.

If any input argument is invalid, null is returned.

1963-1966 Magnatone Custom Series Dating

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The mains and output units had date codes “BW” = February The chokes had “AW” = January Part numbers were , , and for the new “.

How can I find out when my Japanese-made instrument was manufactured? How can I find out when my Mexican-made instrument was manufactured? How can I find out when my Korean-made instrument was manufactured? How can I find out when my Indonesian-made instrument was manufactured? How can I find out when my acoustic instrument was manufactured? How can I find out how old my amplifier is? How can I find out how old my instrument is if it uses an odd or non-standard serial numbering scheme What can you tell me about the historical patent markings that appear on some of your products?

While dating Fender amps made before by serial number is all but impossible as records of these numbers were never kept , all hope is not lost—the charts below should prove helpful in dating your Fender amp. First, it will be useful to you to understand the following five terms in order to choose the correct chart for dating your amp: Silverface , Blackface and Brownface are slang terms used to identify Fender amplifiers based on the color of the control panel these terms are often misconstrued to refer to the color of the grille cloth.

Tolex is the textured vinyl material that covers the amp; offered in many different colors and textures over the years. Tweed refers to the two-tone woven fabric that covered many early amplifiers. On early amps, this material was varnished to make it a more durable covering. Several different types, in vertical and diagonal weaves, were used.


If this proves to be the case, I will be sure to specify the date that I made any additions or corrections to it and keep things such that it will be possible to keep track of what was learned along the way. The value of this information goes a little further than simply answering the idle curiosity…. In a more practical sense, such information gives a good indication of how old the sign really is or at least when it had last required a new transformer during a servicing event.

You will often be amazed at how long this stuff lasts! When dealing with many vintage items, it is often helpful to look closely at construction and design techniques as these are a good indicator of the general age. This cannot be confined to the outwardly visible parts, but must be carried right down to individual components and even the wire types used.

The additional date codes for this era are below. Starting in October, Marshall transformers away from stamped metal plate serials and began.

Fender Tube amp codes: – look for a 2 letter code stamped on the tube chart inside the back of the amp – the first letter is the year, and the second letter is the month. An amp stamped NA would have been made in Jan. Here is a list of the first letter showing the year of manufacture. These codes have nothing to do with the serial number that is stamped on the right rear of the chassis – Those numbers are posted below.

These codes are for amps with the serial number beginning with a letter:. EIA numbers taken from the transformers may help you to determine the date of production on amps that fall between the different dating schemes. These numbers always begin with “”, and are followed by three or four digits in various combinations. If three digits are present, the first digit would refer to the year i.

The Amp Garage

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Piezo components with the 2-in-1 pc genre: Transformer receives an end date for industrial revolution-era setting.

Electronic transformer, coil and inductor manufacturer. NAICS Code: & HS Code: & Let us know the date you need it. We will.

I pulled this information from Google’s cache of the site. If anyone feels this page should be taken down, please feel free to contact me. Ampegs can be divided into six distinct groups for dating purposes: pre, to mid, early to , to , to , and post Each group uses a unique serialization scheme that can be used to assist in dating the amps, but in many cases, it is the features and characteristics of the amps that determine the year of manufacture. Electronic Industries Association EIA codes can also be very useful for giving clues as to an amp’s age.

These codes can be found on speakers, transformers, pots, capacitors, and multi-section electrolytic “can” caps. Of course, these codes are only applicable to original components, not replacement parts.


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