Italian Date Codes

[Professor Marvel]

Italian Manufacture/Proof Date Codes ,
easily found, in one place, not subject tothe capriciousness of the interwebs....

Symbol   Year of Proof
X    1954
XI   1955
XII    1956
XIII    1957
XIV    1958
XV    1959
XVI    1960
XVII    1961
XVIII    1962
XIX    1963
XX    1964
XXI    1965
XXII    1966
XXIII    1967
XXIV    1968
XXV    1969
XXVI    1970
XX7    1971
XX8    1972
XX9    1973
XXX    1974
AA    1975
AB    1976
AC    1977
AD    1978
AE    1979
AF    1980
AH    1981
AI    1982
AL    1983
AM    1984
AN    1985
AP    1986
AS    1987
AT    1988
AU    1989
AZ    1990
BA    1991
BB    1992
BC    1993
BD    1994
BF    1995
BH    1996
BI    1997
BL    1998
BM    1999
BN    2000
BP    2001
BS    2002
BT    2003
BU    2004
BZ    2005
CA    2006
CB    2007
CC    2008
CD    2009
CE    2010
CF    2011
CH    2012
CI    2013
CL    2014

yhs
prof marvel

[RRio]

Italian Manufacture/Proof Date Codes ,
easily found, in one place, not subject tothe capriciousness of the interwebs....


yhs
prof marvel

Thanks for that, Cap   

[Professor Marvel]

You are quite welcome, Rio.
It seems I will have to add about five more years...

Prof Marvel

[Abilene]

You are quite welcome, Rio.
It seems I will have to add about five more years...

Prof Marvel

One could probably guess those newer codes based on the previous list, although it is not totally consistent. 
(There is an AE and a CE, but no BE).

Many lustra ago when I was in QC at Texas Instruments, the build revision letters were marked on each circuit board.  They would not use I, O, Q, S, X, or Z since some of those could be mistaken for something else.  The mnemonic I came up with to remember those letters was Indians On Quaaludes Seem Xtra Zany.   

[Professor Marvel]

One could probably guess those newer codes based on the previous list, although it is not totally consistent. 
(There is an AE and a CE, but no BE).

Many lustra ago when I was in QC at Texas Instruments, the build revision letters were marked on each circuit board.  They would not use I, O, Q, S, X, or Z since some of those could be mistaken for something else.  The mnemonic I came up with to remember those letters was Indians On Quaaludes Seem Xtra Zany.   

Heavens Abilene, I like it!

Were you around when the gov,t rejected huge lots of a particular TI chip from Thailand?
It was a peculiar chip, used mainly in wing mounted missles. They seemed ok, but after installation, when the jet jockey pushed the go button, they did not so much fly as plummet....

Yhs
Prof Marvel

[Abilene]

Heavens Abilene, I like it!

Were you around when the gov,t rejected huge lots of a particular TI chip from Thailand?
It was a peculiar chip, used mainly in wing mounted missles. They seemed ok, but after installation, when the jet jockey pushed the go button, they did not so much fly as plummet....

Yhs
Prof Marvel

No Professor, I had not heard of that one (I was there '77-'01).  We did not make chips at the Austin location.  I did hear about some scrubbed NASA launch caused by a TI chip.  I'm thinking it had been ESD damaged.