Gibson amplifiers have become known amongst guitarists for their warm, consistent sound and reliability. While you may be willing to pay a high price for a vintage Gibson amp, you should always verify the date of the amp to avoid being ripped off. By verifying the date of manufacture of the Gibson amp you want to buy, you will be able to breath easy that you are getting an authentic amp for the right price. Find the source code stamp, which is a series of six or seven numbers, that will be stamped on the speaker. The stamp can be found on any part of the speaker, but it will be readily visible no matter the location. Write out the source code and divide it into three sections.

Dating jensen speakers code

The Code on the tube chart of your Fender Amp is made up of two letters. The First letter equates to the Year and the Second letter to the Month. Reissue amps also use stamped Date Codes. Examples of “Hand Stamped” Date Codes.

I have seen an equal amount of Jensen speakers that have the 5 AND 6 digit codes for any specific year, EX. Jensen PM10C dated BOTH with.

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.

Dating DeArmond Products and Components

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

Jensen special design C8-R Whizzer Very rare original prod. run 8 inch speaker Date Code

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.

Jensen P12R 12″ 8ohm Guitar Speaker date code 1959 from vintage ’59 Fender Deluxe Amp 5e3

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”.

There is an easy way to determine the.

I tested each and every one of the speakers listed here to be working, but I do not warrant that they will work as a direct replacement for what you intend to use them for. Most of these are high efficient speakers, which means that little power is needed to bring out considerable volume and quite a bit of detail. The desirable of vintage guitar speakers is also non linearites in fruequency response and resonance frequencies as favoured by many guitar players.

So: To be used with vintage amplifiers in the 10 to 30 W range. The below listed power capacity is an estimate based on hooking them up. To use these speakers with higher powered amplifiers, such as solid state amplifiers if not several speakers are used to distribute power among them , is likely to destroy them. This is the higher powered version of the Alnico magnet speakers rated at 50W heavy magnet.

Date of manufacture: 21 st week of by the US Chicago plant.

Ask Amp Man: Identifying Vintage Fender Speakers — and Battling Hum

This seller has not set a shipping cost for Canada. Please contact them to ask about shipping. This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed.

There is an easy way to determine the date of your vintage Jensen speaker. On the edge of the speaker where the mounting holes are there will be a six digit.

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Nick Dorazio . Speaker Repair

Folkway Music has a new site. Click here to check it out. COM —. Main Photo. Steel pots dated early

All Jensen speakers also include a date and manufacturer’s code. Jensen’s source code is Accompanying the company specific (EIA) code () is the last.

Jensen Loudspeakers is a company that manufactures speakers in many different models and sizes. Originally located in Chicago , Illinois , the company built a reputation during the 50s and 60s providing speakers used mainly in guitar and bass amplifiers. The company gained popularity in its early years, rising to its peak in the mid s when Jensen speakers were selected to be used in the first production of a guitar amplifier by Fender Musical Instruments Corporation.

Subsequently, Jensen speakers in the 40s, 50s, and 60s became commonly featured in major amplifier production, including amplifiers produced by Fender, Ampeg , and Gibson. The company also produced Hi-Fi loudspeakers for home use and was a manufacturer of OEM drivers for other brands. Jensen Loudspeakers ceased production of their products in the late s. The speakers remained heavily sought-after as replacements for amplifiers originally manufactured with Jensen speakers.

These speakers are designed to be as close as possible to their original design. These are listed in the order in which they were made, with the P line starting in the s and the C line starting around

NAMM 2014 Jensen Speakers