Dating rola speakers www datingnmore com singles rus turkey htm
The remaining digits indicate the week of that year.
For example, a code of 7949422 indicates that the speakers were made in the 22nd week of 1994 by Harman Kardon.
JBL is short for James Bullough Lansing, who founded the company.
JBL makes a wide range of speakers and subwoofers both under the JBL name and also under the Altec Lansing and Harman Kardon names.
The codes are added on the production line and are stamped on the speaker's chassis leg, on the front gasket or for later speakers, printed onto an id label stuck onto the magnet's edge.
If you can track down the datecode, simply refer to the following set of tables, which provide an accurate record of the date codes used throughout the years.
To submit your questions or ideas, or to simply learn more about It Still Works, contact us.
Since 1956, all Celestion chassis drivers have been stamped with a datecode (two numbers and two letters), denoting exact date of manufacture.
The year is confusing because it is only a single digit.The number 371 indicates Altec Lansing and 794 represents Harman Kardon. The first two digits after the manufacturer three digit code indicate the year.Speakers made before the 1970s only have one digit representing the year which is misleading.Per manufacturing regulations, the makers of electronics must include a minimum amount of production date information on their products.Depending on when the speakers were made this information may simply include a year and week or may be more specific, down to the day or hour.
Some manufacturers also attached other letters to the end of the date code to indicate day of the week, work shift, serial number, lot number, etc.