Speaker dating

[jackassrock]

I just pulled the back off my 4x12 last night and found that what I thought were vintage 30s were in fact blackback 25s. I'm just wondering how I can determine the date of manufacture from the stamp on the side of the basket.

Also, is there a way to find out what kind of celestion I've got from that number? I have another speaker that has lost the plastic cover from the magnet, and I know it's a Celestion cause it was in a cab with 2 30s and a 35 and the basket is identical, just don't know what the wattage is.

[Reverberator]

The Celestion web site will tell you what year your speakers are from , just make a note of the numbers and thou shalt be enlightened.

[Hardrock69]

Celestion DATE CODES

Since 1956, all Celestion chassis drivers have been stamped with a date code (2 numbers and 2 letters), denoting the exact date of manufacture. The codes are added on the production line and are placed on the speaker's housing leg or the magnet edge. The following lists provide an accurate record of the date codes used.



1956 - 1962

YEAR CODE MONTH CODE

1956 A January A

1957 B February B

1958 C March C

1959 D April D

1960 E May E

1961 F June F

1962 G July G

August H

September I

October J

November K

December L

The datecodes from 1956 to 1962 are written in the form: Day, Month, Year.

For example: 15DE = 15th April 1960



1963 - 1967

YEAR CODE MONTH CODE

1963 H January A

1964 J February B

1965 K March C

1966 L April D

1967 M May E

June F

July G

August H

September J

October K

November L

December M

Note the loss of the 'I' from the month codes. The date codes from 1963 to 1967 are written in the form: Day, Month, Year. For example: 19MK = 19th December 1965





1968 - 1991

YEAR CODE MONTH CODE

1968 A January A

1969 B February B

1970 C March C

1971 D April D

1972 E May E

1973 F June F

1974 G July G

1975 H August H

1976 J September J

1977 K October K

1978 L November L

1979 M December M

1980 N

1981 P

1982 Q

1983 R

1984 S

1985 T

1986 U

1987 V

1988 W

1989 X

1990 Y

1991 Z/A

The date codes from 1968 to 1991 are written in the form: Month, Year, Day.

For example: KH7 = 7th October 1975

1992 -

YEAR CODE MONTH CODE

1992 B January A

1992 V February B

1993 D March C

1995 E April D

1996 F May E

1997 G June F

1998 H July G

1999 J August H

2000 K September J

2001 L October K

2002 M November L

2003 N December M

2004 P

2005 Q

The date codes from 1992 are written in the form: Day, Month, Year.

For example: 29EJ = 29th May 1999

[Reverberator]

That's basically what I did but I did it the lazy way...

[LoungeMachine]

From the thread title I thought someone was asking out Nancy Pelosi for dinner and drinks....

[jhale667]

Verbal minefield, really...

From the thread title I thought someone was asking out Nancy Pelosi for dinner and drinks....

Yeah, but even calling it "speaker date codes" could be taken the wrong way...

[jackassrock]

February 77... Goddamn they sound fucking great !

[Hardrock69]

From the thread title I thought someone was asking out Nancy Pelosi for dinner and drinks....