Dating jensen speakers code

05.06.2017

dating jensen speakers code

But where does that leave everyone else? I still can't believe it! 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. DonM replied Jun 16, at 3: The year is confusing because it is only a single digit. The fode Jensen Radio Manufacturing Company was founded jejsen by Peter Laurits Jensenthe co-inventor of the first loudspeaker, in Chicago, Illinois. PMGuitars Art of the West. Speakerz 10, SSGuitar has been upgraded to SMF v2. Jensen speaker made in the 41st week of Just a guess here. Note the different position dating jensen speakers code the markings, even on pots from the same maker. Just coxe loud as ever huh? You might find some of the information useful in determining which speaker would be best suited to your application. Apparently, it was so that key click and other dating jensen speakers code that were at the time thought as undesirable would be toned down. Social FACEBOOK TWITTER YOUTUBE INSTAGRAM. Pots used by Fender.

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 speakerrs 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 dating no contact rule leave you out jensn the informational cold, so here's something that I spdakers quite often in dating amplifiers and electric guitars.

It's called the "source-date code", and it speakes help determine the approximate age of an electric instrument by the date its components datung manufactured. Source-Date Codes On Jenseh made vintage gear, the pots and speakers provide jnesen 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 datong 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 dating jensen speakers code a brand new CTS pot datin, they are dated a month or two in advance!

It's worth mentioning since a lot of people rely on pot dates. That said, it's not uncommon for pot manufacturers to post date pots anywhere from a few weeks to speakwrs much as 18 months. The standard today is no more than 18 months, but back in dating jensen speakers code s and s, who knows? Some large parts datimg would even return parts if dzting date code was "expired" and want "fresh" parts in return.

This seems silly, as we're talking about electronic parts not eggs. But if you think about it, parts like electrolytic dating jensen speakers code, this could be an issue. Then the parts maker like CTS would have to eat the returned inventory, or sell it off to someone that didn't dating jensen speakers code about date codes, and probably at a discounted amount.

What I'm saying is that pot and capacitory date dating jensen speakers code are not a reliable indicator of guitar build dates. Though they are one piece of the puzzle dating jensen speakers code something to dating jensen speakers code, don't put too much faith into a pot date. The source-date codes are under the framework of the "Electronic Industries Association", which is a non-profit organization representing the manufacturers of electronic parts. The EIA source-date code is a numeric code, assigned and registered by the EIA.

It can be stamped or marked on any product to identify the production source vendor and date of manufacturer. Source-date codes have been published by the EIA since The EIA can be contacted via mail: Electronics Industries Association, Pennsylvania Ave NW, Washington, D. Source-date codes weren't an industry standard until after WWII.

But I have seen them used on Stackpole pots on electric National guitars as early as The first time date-source codes were published wasso I guess you could see them as datinv as the late 's. Most Fenders from to have dated CTS pots. On popular Fender models, the pot date can be very close to the actual dating jensen speakers code of the dating jensen speakers code. On less popular Fender instruments, such as LapSteels, pots can be as much as two years earlier than the actual date of the instrument.

Gibson didn't start using pots with source-date codes till or Of course this all assumes the pot or speaker is original. You have to make that call. I would suggest checking the solder joints - are they clean? Are the wires of the datijg era cloth insulation for older speaakers If so, you can check the pot or speaker for the source-date code, and determine an approximate age from that. How datign Source-Date Code Works. The source-date code ocde a pot is a 6 or 7 digit code impressed into the casing of the potentiometer.

For speakers this code can be 5, 6, 7 or 8 digits jenseb, and datnig ink-stamped or paint-stamped on the "bell housing" of the speaker. In either case, the code works the same. The first 3 digits on a pot, or the first 2, 3 or 4 digits on a speaker are the source or manufacturer code. The remaining 3 or 4 digits are the date code. Dating jensen speakers code 3 digit dates code, the 1st digit is the last digit of the year.

On 4 digits date codes, the 1st and 2nd digits are the last two digits of the year. In either case, the remaining 2 digits are the week of manufacture 01 to With this in mind, remember 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 dating jensen speakers code late On 3 digit date codes, you have to "guess" the decade of the speakes or speaker.

Usually dating jensen speakers code isn't too difficult. Pots used by Fender. The middle one is a CTS pot Chicago Telephone Supply, manufacturer from the 30th week of The pots on the left and right are Stackpole pots manufacture Note the different position of the markings, even on pots from the same maker. The source-date code on a speaker.

In this case, the speaker is made by Rola in the 9th week of The decade, though not directly shown by the source-date code, was easily determined because this particular dating jensen speakers code was only made during the s. Note the font style of the source-date code number always seems to be the same, for all speaker manufacturers. Jensen speaker made in the 41st week of Here are the most common pot manufacturers the first 3 digits of the source-date code: During the 's, Fender used mostly Stackpole pots.

Then in roughly earlythey changed to CTS pots. In after CBS bought FenderFender bought a HUGE supply of pots from CTS. This supply lasted for over five years. So guitars and amps made as late as can still have date codes from this huge stocking. Vating during Fender's life as an amplifier maker, then used speakers made by JensenCTSOxfordUtah and Altec-Lansing Jenen aboutJensen was the only Fender speaker supplier. Then from and later you see Fender using speakers from all the above mentioned makers.

Mullard rectifier, krossovk.ru its 12" speaker, , I know its a Jensen, Wiring Diagram and Date Code Information | Jensen Loudspeakers. I have a Jensen speaker stamped P15L,C on the rim. The P15L is C 2 ; Jensen internal code. C ; Fender internal date code. I know that was jensen's manufacturer code. What is confusing me is the date code, and appearance of the speaker. It doesn't look like the. I recently bought an old speaker cab that came with an unbranded Jensen 12" speaker, I'd like to know how old it is. The code on the speaker   Jensen Speaker Info pleeze.